131244122451 has 16 divisors (see below), whose sum is σ = 191542497440. Its totient is φ = 79441585920.

The previous prime is 131244122417. The next prime is 131244122459. The reversal of 131244122451 is 154221442131.

It is not a de Polignac number, because 131244122451 - 2¹⁴ = 131244106067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131244122459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27581506 + ... + 27586263.

It is an arithmetic number, because the mean of its divisors is an integer number (11971406090).

Almost surely, 2^131244122451 is an apocalyptic number.

131244122451 is a deficient number, since it is larger than the sum of its proper divisors (60298374989).

131244122451 is a wasteful number, since it uses less digits than its factorization.

131244122451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55167846.

The product of its digits is 7680, while the sum is 30.

Adding to 131244122451 its reverse (154221442131), we get a palindrome (285465564582).

The spelling of 131244122451 in words is "one hundred thirty-one billion, two hundred forty-four million, one hundred twenty-two thousand, four hundred fifty-one".