102012100231 has 4 divisors (see below), whose sum is σ = 102013487200. Its totient is φ = 102010713264.

The previous prime is 102012100217. The next prime is 102012100249. The reversal of 102012100231 is 132001210201.

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 102012100231 - 2²⁷ = 101877882503 is a prime.

It is a super-2 number, since 2×102012100231² (a number of 23 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 (102012107231) 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, 576591 + ... + 732448.

It is an arithmetic number, because the mean of its divisors is an integer number (25503371800).

Almost surely, 2^102012100231 is an apocalyptic number.

102012100231 is a deficient number, since it is larger than the sum of its proper divisors (1386969).

102012100231 is an equidigital number, since it uses as much as digits as its factorization.

102012100231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386968.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 102012100231 its reverse (132001210201), we get a palindrome (234013310432).

The spelling of 102012100231 in words is "one hundred two billion, twelve million, one hundred thousand, two hundred thirty-one".