102213201231 has 24 divisors (see below), whose sum is σ = 149145350016. Its totient is φ = 67448581200.

The previous prime is 102213201229. The next prime is 102213201281. The reversal of 102213201231 is 132102312201.

102213201231 is a `hidden beast` number, since 1 + 0 + 221 + 320 + 123 + 1 = 666.

It is not a de Polignac number, because 102213201231 - 2¹ = 102213201229 is a prime.

It is a super-2 number, since 2×102213201231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102213201281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2017156 + ... + 2067206.

It is an arithmetic number, because the mean of its divisors is an integer number (6214389584).

Almost surely, 2^102213201231 is an apocalyptic number.

102213201231 is a deficient number, since it is larger than the sum of its proper divisors (46932148785).

102213201231 is a wasteful number, since it uses less digits than its factorization.

102213201231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52363 (or 52360 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 102213201231 its reverse (132102312201), we get a palindrome (234315513432).

The spelling of 102213201231 in words is "one hundred two billion, two hundred thirteen million, two hundred one thousand, two hundred thirty-one".