102040232423981 has 16 divisors (see below), whose sum is σ = 102250046062080. Its totient is φ = 101830669724160.

The previous prime is 102040232423957. The next prime is 102040232423993. The reversal of 102040232423981 is 189324232040201.

It is a cyclic number.

It is not a de Polignac number, because 102040232423981 - 2²² = 102040228229677 is a prime.

It is a super-2 number, since 2×102040232423981² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102040232423581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5278024391 + ... + 5278043723.

It is an arithmetic number, because the mean of its divisors is an integer number (6390627878880).

Almost surely, 2^{102040232423981} is an apocalyptic number.

It is an amenable number.

102040232423981 is a deficient number, since it is larger than the sum of its proper divisors (209813638099).

102040232423981 is a wasteful number, since it uses less digits than its factorization.

102040232423981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25276.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 102040232423981 in words is "one hundred two trillion, forty billion, two hundred thirty-two million, four hundred twenty-three thousand, nine hundred eighty-one".