123131445322 has 16 divisors (see below), whose sum is σ = 187886849472. Its totient is φ = 60506740800.

The previous prime is 123131445319. The next prime is 123131445331. The reversal of 123131445322 is 223544131321.

It is a super-2 number, since 2×123131445322² (a number of 23 digits) contains 22 as substring.

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, 1003054 + ... + 1119097.

It is an arithmetic number, because the mean of its divisors is an integer number (11742928092).

Almost surely, 2^123131445322 is an apocalyptic number.

123131445322 is a deficient number, since it is larger than the sum of its proper divisors (64755404150).

123131445322 is a wasteful number, since it uses less digits than its factorization.

123131445322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122653.

The product of its digits is 17280, while the sum is 31.

Adding to 123131445322 its reverse (223544131321), we get a palindrome (346675576643).

The spelling of 123131445322 in words is "one hundred twenty-three billion, one hundred thirty-one million, four hundred forty-five thousand, three hundred twenty-two".