131012200120431 has 8 divisors (see below), whose sum is σ = 199637638278784. Its totient is φ = 74864114354520.

The previous prime is 131012200120339. The next prime is 131012200120447. The reversal of 131012200120431 is 134021002210131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131012200120431 - 2²¹ = 131012198023279 is a prime.

It is a super-2 number, since 2×131012200120431² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 6238676196211 = 131012200120431 / (1 + 3 + 1 + 0 + 1 + 2 + 2 + 0 + 0 + 1 + 2 + 0 + 4 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131012200120398 and 131012200120407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131012200120831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3119338098085 + ... + 3119338098126.

It is an arithmetic number, because the mean of its divisors is an integer number (24954704784848).

Almost surely, 2^{131012200120431} is an apocalyptic number.

131012200120431 is a deficient number, since it is larger than the sum of its proper divisors (68625438158353).

131012200120431 is an equidigital number, since it uses as much as digits as its factorization.

131012200120431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6238676196221.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 131012200120431 its reverse (134021002210131), we get a palindrome (265033202330562).

The spelling of 131012200120431 in words is "one hundred thirty-one trillion, twelve billion, two hundred million, one hundred twenty thousand, four hundred thirty-one".