102011202312031 has 4 divisors (see below), whose sum is σ = 102013370918464. Its totient is φ = 102009033705600.

The previous prime is 102011202312001. The next prime is 102011202312053. The reversal of 102011202312031 is 130213202110201.

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 102011202312031 - 2⁷ = 102011202311903 is a prime.

It is a super-2 number, since 2×102011202312031² (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 (102011202312001) 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, 1084232655 + ... + 1084326736.

It is an arithmetic number, because the mean of its divisors is an integer number (25503342729616).

Almost surely, 2^{102011202312031} is an apocalyptic number.

102011202312031 is a deficient number, since it is larger than the sum of its proper divisors (2168606433).

102011202312031 is an equidigital number, since it uses as much as digits as its factorization.

102011202312031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168606432.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 102011202312031 its reverse (130213202110201), we get a palindrome (232224404422232).

The spelling of 102011202312031 in words is "one hundred two trillion, eleven billion, two hundred two million, three hundred twelve thousand, thirty-one".