131305869776 has 10 divisors (see below), whose sum is σ = 254405122722. Its totient is φ = 65652934880.

The previous prime is 131305869703. The next prime is 131305869787. The reversal of 131305869776 is 677968503131.

It can be written as a sum of positive squares in only one way, i.e., 128593960000 + 2711909776 = 358600^2 + 52076^2 .

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, 4103308415 + ... + 4103308446.

Almost surely, 2^131305869776 is an apocalyptic number.

131305869776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131305869776 is a deficient number, since it is larger than the sum of its proper divisors (123099252946).

131305869776 is an equidigital number, since it uses as much as digits as its factorization.

131305869776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8206616869 (or 8206616863 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 56.

The spelling of 131305869776 in words is "one hundred thirty-one billion, three hundred five million, eight hundred sixty-nine thousand, seven hundred seventy-six".