145321013224023 has 32 divisors (see below), whose sum is σ = 238479024139776. Its totient is φ = 76651712235648.

The previous prime is 145321013224007. The next prime is 145321013224031. The reversal of 145321013224023 is 320422310123541.

It is a happy number.

145321013224023 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145321013224023 - 2⁴ = 145321013224007 is a prime.

It is a super-2 number, since 2×145321013224023² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145321013224033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14794240 + ... + 22572362.

It is an arithmetic number, because the mean of its divisors is an integer number (7452469504368).

Almost surely, 2^{145321013224023} is an apocalyptic number.

145321013224023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

145321013224023 is a deficient number, since it is larger than the sum of its proper divisors (93158010915753).

145321013224023 is a wasteful number, since it uses less digits than its factorization.

145321013224023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7846583.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 145321013224023 its reverse (320422310123541), we get a palindrome (465743323347564).

The spelling of 145321013224023 in words is "one hundred forty-five trillion, three hundred twenty-one billion, thirteen million, two hundred twenty-four thousand, twenty-three".