131135131401420 has 24 divisors (see below), whose sum is σ = 367178367924144. Its totient is φ = 34969368373696.

The previous prime is 131135131401331. The next prime is 131135131401427. The reversal of 131135131401420 is 24104131531131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (131135131401427) 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, 1092792761619 + ... + 1092792761738.

It is an arithmetic number, because the mean of its divisors is an integer number (15299098663506).

Almost surely, 2^{131135131401420} is an apocalyptic number.

131135131401420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131135131401420 is an abundant number, since it is smaller than the sum of its proper divisors (236043236522724).

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

131135131401420 is a wasteful number, since it uses less digits than its factorization.

131135131401420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185585523369 (or 2185585523367 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 131135131401420 its reverse (24104131531131), we get a palindrome (155239262932551).

The spelling of 131135131401420 in words is "one hundred thirty-one trillion, one hundred thirty-five billion, one hundred thirty-one million, four hundred one thousand, four hundred twenty".