102240231131 has 4 divisors (see below), whose sum is σ = 108254362392. Its totient is φ = 96226099872.

The previous prime is 102240231113. The next prime is 102240231157. The reversal of 102240231131 is 131132042201.

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

It is not a de Polignac number, because 102240231131 - 2¹⁰ = 102240230107 is a prime.

It is a super-2 number, since 2×102240231131² (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 (102240231031) 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, 3007065605 + ... + 3007065638.

It is an arithmetic number, because the mean of its divisors is an integer number (27063590598).

Almost surely, 2^102240231131 is an apocalyptic number.

102240231131 is a deficient number, since it is larger than the sum of its proper divisors (6014131261).

102240231131 is an equidigital number, since it uses as much as digits as its factorization.

102240231131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6014131260.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 102240231131 its reverse (131132042201), we get a palindrome (233372273332).

The spelling of 102240231131 in words is "one hundred two billion, two hundred forty million, two hundred thirty-one thousand, one hundred thirty-one".