113231012212 has 6 divisors (see below), whose sum is σ = 198154271378. Its totient is φ = 56615506104.

The previous prime is 113231012177. The next prime is 113231012233. The reversal of 113231012212 is 212210132311.

It can be written as a sum of positive squares in only one way, i.e., 112495843216 + 735168996 = 335404^2 + 27114^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 113231012212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14153876523 + ... + 14153876530.

Almost surely, 2^113231012212 is an apocalyptic number.

It is an amenable number.

113231012212 is a deficient number, since it is larger than the sum of its proper divisors (84923259166).

113231012212 is a wasteful number, since it uses less digits than its factorization.

113231012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28307753057 (or 28307753055 counting only the distinct ones).

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

Adding to 113231012212 its reverse (212210132311), we get a palindrome (325441144523).

The spelling of 113231012212 in words is "one hundred thirteen billion, two hundred thirty-one million, twelve thousand, two hundred twelve".