131235251011 has 8 divisors (see below), whose sum is σ = 134138488320. Its totient is φ = 128363064648.

The previous prime is 131235250973. The next prime is 131235251023. The reversal of 131235251011 is 110152532131.

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

It is a cyclic number.

It is not a de Polignac number, because 131235251011 - 2³³ = 122645316419 is a prime.

It is a super-2 number, since 2×131235251011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131235251041) 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, 7754191 + ... + 7771096.

It is an arithmetic number, because the mean of its divisors is an integer number (16767311040).

Almost surely, 2^131235251011 is an apocalyptic number.

131235251011 is a deficient number, since it is larger than the sum of its proper divisors (2903237309).

131235251011 is a wasteful number, since it uses less digits than its factorization.

131235251011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15525473.

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 131235251011 its reverse (110152532131), we get a palindrome (241387783142).

The spelling of 131235251011 in words is "one hundred thirty-one billion, two hundred thirty-five million, two hundred fifty-one thousand, eleven".