113402131212 has 24 divisors (see below), whose sum is σ = 276109537536. Its totient is φ = 36157201168.

The previous prime is 113402131211. The next prime is 113402131223. The reversal of 113402131212 is 212131204311.

It is not an unprimeable number, because it can be changed into a prime (113402131211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205438368 + ... + 205438919.

It is an arithmetic number, because the mean of its divisors is an integer number (11504564064).

Almost surely, 2^113402131212 is an apocalyptic number.

113402131212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113402131212 is an abundant number, since it is smaller than the sum of its proper divisors (162707406324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113402131212 is a wasteful number, since it uses less digits than its factorization.

113402131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410877317 (or 410877315 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 113402131212 its reverse (212131204311), we get a palindrome (325533335523).

The spelling of 113402131212 in words is "one hundred thirteen billion, four hundred two million, one hundred thirty-one thousand, two hundred twelve".