151123434450121 has 144 divisors (see below), whose sum is σ = 200885345353728. Its totient is φ = 111176426750400.

The previous prime is 151123434450073. The next prime is 151123434450193. The reversal of 151123434450121 is 121054434321151.

It is a happy number.

It is not a de Polignac number, because 151123434450121 - 2¹⁷ = 151123434319049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (151123434460121) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1947654036 + ... + 1947731626.

It is an arithmetic number, because the mean of its divisors is an integer number (1395037120512).

Almost surely, 2^{151123434450121} is an apocalyptic number.

It is an amenable number.

151123434450121 is a deficient number, since it is larger than the sum of its proper divisors (49761910903607).

151123434450121 is a wasteful number, since it uses less digits than its factorization.

151123434450121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77760 (or 77718 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

Adding to 151123434450121 its reverse (121054434321151), we get a palindrome (272177868771272).

The spelling of 151123434450121 in words is "one hundred fifty-one trillion, one hundred twenty-three billion, four hundred thirty-four million, four hundred fifty thousand, one hundred twenty-one".