131223044431130 has 16 divisors (see below), whose sum is σ = 238368466032840. Its totient is φ = 52007665315392.

The previous prime is 131223044431123. The next prime is 131223044431147. The reversal of 131223044431130 is 31134440322131.

It can be written as a sum of positive squares in 4 ways, for example, as 77358762116689 + 53864282314441 = 8795383^2 + 7339229^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60194055989 + ... + 60194058168.

Almost surely, 2^{131223044431130} is an apocalyptic number.

131223044431130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131223044431130 is a deficient number, since it is larger than the sum of its proper divisors (107145421601710).

131223044431130 is a wasteful number, since it uses less digits than its factorization.

131223044431130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120388114273.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 131223044431130 its reverse (31134440322131), we get a palindrome (162357484753261).

The spelling of 131223044431130 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, forty-four million, four hundred thirty-one thousand, one hundred thirty".