131212290840 has 32 divisors (see below), whose sum is σ = 393636872880. Its totient is φ = 34989944192.

The previous prime is 131212290757. The next prime is 131212290889. The reversal of 131212290840 is 48092212131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546717759 + ... + 546717998.

Almost surely, 2^131212290840 is an apocalyptic number.

131212290840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131212290840 is an abundant number, since it is smaller than the sum of its proper divisors (262424582040).

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

131212290840 is a wasteful number, since it uses less digits than its factorization.

131212290840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093435771 (or 1093435767 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 131212290840 in words is "one hundred thirty-one billion, two hundred twelve million, two hundred ninety thousand, eight hundred forty".