144302021235231 has 4 divisors (see below), whose sum is σ = 192402694980312. Its totient is φ = 96201347490152.

The previous prime is 144302021235209. The next prime is 144302021235241. The reversal of 144302021235231 is 132532120203441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144302021235231 - 2¹⁷ = 144302021104159 is a prime.

It is a super-2 number, since 2×144302021235231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144302021235192 and 144302021235201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144302021235241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24050336872536 + ... + 24050336872541.

It is an arithmetic number, because the mean of its divisors is an integer number (48100673745078).

Almost surely, 2^{144302021235231} is an apocalyptic number.

144302021235231 is a deficient number, since it is larger than the sum of its proper divisors (48100673745081).

144302021235231 is an equidigital number, since it uses as much as digits as its factorization.

144302021235231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48100673745080.

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

Adding to 144302021235231 its reverse (132532120203441), we get a palindrome (276834141438672).

The spelling of 144302021235231 in words is "one hundred forty-four trillion, three hundred two billion, twenty-one million, two hundred thirty-five thousand, two hundred thirty-one".