131020320101 has 24 divisors (see below), whose sum is σ = 152425293696. Its totient is φ = 111666053120.

The previous prime is 131020320097. The next prime is 131020320191. The reversal of 131020320101 is 101023020131.

It is not a de Polignac number, because 131020320101 - 2² = 131020320097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131020320191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 736820 + ... + 897186.

It is an arithmetic number, because the mean of its divisors is an integer number (6351053904).

Almost surely, 2^131020320101 is an apocalyptic number.

131020320101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131020320101 is a deficient number, since it is larger than the sum of its proper divisors (21404973595).

131020320101 is a wasteful number, since it uses less digits than its factorization.

131020320101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160669 (or 160652 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 131020320101 its reverse (101023020131), we get a palindrome (232043340232).

The spelling of 131020320101 in words is "one hundred thirty-one billion, twenty million, three hundred twenty thousand, one hundred one".