131213230 has 16 divisors (see below), whose sum is σ = 236343744. Its totient is φ = 52449760.

The previous prime is 131213177. The next prime is 131213249. The reversal of 131213230 is 32312131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15204 + ... + 22216.

It is an arithmetic number, because the mean of its divisors is an integer number (14771484).

Almost surely, 2^131213230 is an apocalyptic number.

131213230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131213230 is a deficient number, since it is larger than the sum of its proper divisors (105130514).

131213230 is a wasteful number, since it uses less digits than its factorization.

131213230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8891.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 131213230 is about 11454.8343506137. The cubic root of 131213230 is about 508.1507163317.

Adding to 131213230 its reverse (32312131), we get a palindrome (163525361).

The spelling of 131213230 in words is "one hundred thirty-one million, two hundred thirteen thousand, two hundred thirty".