123290919682 has 48 divisors (see below), whose sum is σ = 221074629048. Its totient is φ = 51387060480.

The previous prime is 123290919659. The next prime is 123290919691. The reversal of 123290919682 is 286919092321.

It can be written as a sum of positive squares in 4 ways, for example, as 55493696041 + 67797223641 = 235571^2 + 260379^2 .

It is a super-2 number, since 2×123290919682² (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 23 ways as a sum of consecutive naturals, for example, 1225308 + ... + 1322104.

Almost surely, 2^123290919682 is an apocalyptic number.

123290919682 is a deficient number, since it is larger than the sum of its proper divisors (97783709366).

123290919682 is a wasteful number, since it uses less digits than its factorization.

123290919682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97171 (or 97164 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 52.

The spelling of 123290919682 in words is "one hundred twenty-three billion, two hundred ninety million, nine hundred nineteen thousand, six hundred eighty-two".