131151321444 has 48 divisors (see below), whose sum is σ = 359519711040. Its totient is φ = 36685683840.

The previous prime is 131151321407. The next prime is 131151321467. The reversal of 131151321444 is 444123151131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38212539 + ... + 38215970.

It is an arithmetic number, because the mean of its divisors is an integer number (7489993980).

Almost surely, 2^131151321444 is an apocalyptic number.

It is an amenable number.

131151321444 is an abundant number, since it is smaller than the sum of its proper divisors (228368389596).

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

131151321444 is a wasteful number, since it uses less digits than its factorization.

131151321444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76428540 (or 76428538 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

Adding to 131151321444 its reverse (444123151131), we get a palindrome (575274472575).

The spelling of 131151321444 in words is "one hundred thirty-one billion, one hundred fifty-one million, three hundred twenty-one thousand, four hundred forty-four".