102121031131 has 8 divisors (see below), whose sum is σ = 116841335040. Its totient is φ = 87433623528.

The previous prime is 102121031123. The next prime is 102121031161. The reversal of 102121031131 is 131130121201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102121031131 - 2³ = 102121031123 is a prime.

It is a super-2 number, since 2×102121031131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102121031101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8217421 + ... + 8229838.

It is an arithmetic number, because the mean of its divisors is an integer number (14605166880).

Almost surely, 2^102121031131 is an apocalyptic number.

102121031131 is a deficient number, since it is larger than the sum of its proper divisors (14720303909).

102121031131 is an equidigital number, since it uses as much as digits as its factorization.

102121031131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16448153.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 102121031131 its reverse (131130121201), we get a palindrome (233251152332).

The spelling of 102121031131 in words is "one hundred two billion, one hundred twenty-one million, thirty-one thousand, one hundred thirty-one".