102213231231 has 32 divisors (see below), whose sum is σ = 147995760640. Its totient is φ = 62529024384.

The previous prime is 102213231223. The next prime is 102213231251. The reversal of 102213231231 is 132132312201.

It is not a de Polignac number, because 102213231231 - 2³ = 102213231223 is a prime.

It is a super-2 number, since 2×102213231231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102213231198 and 102213231207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102213231251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361641 + ... + 578973.

It is an arithmetic number, because the mean of its divisors is an integer number (4624867520).

Almost surely, 2^102213231231 is an apocalyptic number.

102213231231 is a deficient number, since it is larger than the sum of its proper divisors (45782529409).

102213231231 is a wasteful number, since it uses less digits than its factorization.

102213231231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217615.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 102213231231 its reverse (132132312201), we get a palindrome (234345543432).

The spelling of 102213231231 in words is "one hundred two billion, two hundred thirteen million, two hundred thirty-one thousand, two hundred thirty-one".