102451332021131 has 4 divisors (see below), whose sum is σ = 105756213699264. Its totient is φ = 99146450343000.

The previous prime is 102451332021109. The next prime is 102451332021187. The reversal of 102451332021131 is 131120233154201.

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 102451332021131 - 2⁴² = 98053285510027 is a prime.

It is a super-2 number, since 2×102451332021131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102451332021094 and 102451332021103.

It is not an unprimeable number, because it can be changed into a prime (102451332011131) 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, 1652440839020 + ... + 1652440839081.

It is an arithmetic number, because the mean of its divisors is an integer number (26439053424816).

Almost surely, 2^{102451332021131} is an apocalyptic number.

102451332021131 is a deficient number, since it is larger than the sum of its proper divisors (3304881678133).

102451332021131 is an equidigital number, since it uses as much as digits as its factorization.

102451332021131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304881678132.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 102451332021131 its reverse (131120233154201), we get a palindrome (233571565175332).

The spelling of 102451332021131 in words is "one hundred two trillion, four hundred fifty-one billion, three hundred thirty-two million, twenty-one thousand, one hundred thirty-one".