131409431770 has 32 divisors (see below), whose sum is σ = 239295038976. Its totient is φ = 51952320000.

The previous prime is 131409431761. The next prime is 131409431789. The reversal of 131409431770 is 77134904131.

It is a super-2 number, since 2×131409431770² (a number of 23 digits) contains 22 as substring.

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, 638275 + ... + 818665.

It is an arithmetic number, because the mean of its divisors is an integer number (7477969968).

Almost surely, 2^131409431770 is an apocalyptic number.

131409431770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131409431770 is a deficient number, since it is larger than the sum of its proper divisors (107885607206).

131409431770 is a wasteful number, since it uses less digits than its factorization.

131409431770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181246.

The product of its (nonzero) digits is 63504, while the sum is 40.

The spelling of 131409431770 in words is "one hundred thirty-one billion, four hundred nine million, four hundred thirty-one thousand, seven hundred seventy".