123090108964 has 81 divisors (see below), whose sum is σ = 234103149553. Its totient is φ = 56623092064.

The previous prime is 123090108961. The next prime is 123090108989. The reversal of 123090108964 is 469801090321.

It is a happy number.

The square root of 123090108964 is 350842.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 64545467364 + 58544641600 = 254058^2 + 241960^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123090108964.

It is not an unprimeable number, because it can be changed into a prime (123090108961) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 468023097 + ... + 468023359.

Almost surely, 2^123090108964 is an apocalyptic number.

123090108964 is the 350842-nd square number.

It is an amenable number.

123090108964 is a deficient number, since it is larger than the sum of its proper divisors (111013040589).

123090108964 is an equidigital number, since it uses as much as digits as its factorization.

123090108964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 123090108964 in words is "one hundred twenty-three billion, ninety million, one hundred eight thousand, nine hundred sixty-four".