102443213211231 has 64 divisors (see below), whose sum is σ = 144724915077120. Its totient is φ = 64276978671360.

The previous prime is 102443213211203. The next prime is 102443213211253. The reversal of 102443213211231 is 132112312344201.

It is not a de Polignac number, because 102443213211231 - 2¹³ = 102443213203039 is a prime.

It is a super-2 number, since 2×102443213211231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102443213211431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20138234770 + ... + 20138239856.

It is an arithmetic number, because the mean of its divisors is an integer number (2261326798080).

Almost surely, 2^{102443213211231} is an apocalyptic number.

102443213211231 is a deficient number, since it is larger than the sum of its proper divisors (42281701865889).

102443213211231 is a wasteful number, since it uses less digits than its factorization.

102443213211231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8044.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 102443213211231 its reverse (132112312344201), we get a palindrome (234555525555432).

The spelling of 102443213211231 in words is "one hundred two trillion, four hundred forty-three billion, two hundred thirteen million, two hundred eleven thousand, two hundred thirty-one".