231231011230 has 32 divisors (see below), whose sum is σ = 452609902656. Its totient is φ = 84698924544.

The previous prime is 231231011197. The next prime is 231231011251. The reversal of 231231011230 is 32110132132.

It is a super-2 number, since 2×231231011230² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231231011198 and 231231011207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18374554 + ... + 18387133.

It is an arithmetic number, because the mean of its divisors is an integer number (14144059458).

Almost surely, 2^231231011230 is an apocalyptic number.

231231011230 is a deficient number, since it is larger than the sum of its proper divisors (221378891426).

231231011230 is a wasteful number, since it uses less digits than its factorization.

231231011230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36761748.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 231231011230 its reverse (32110132132), we get a palindrome (263341143362).

The spelling of 231231011230 in words is "two hundred thirty-one billion, two hundred thirty-one million, eleven thousand, two hundred thirty".