123113031404 has 24 divisors (see below), whose sum is σ = 235198563600. Its totient is φ = 55921279680.

The previous prime is 123113031359. The next prime is 123113031409. The reversal of 123113031404 is 404130311321.

It is a super-2 number, since 2×123113031404² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123113031404.

It is not an unprimeable number, because it can be changed into a prime (123113031409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 916139 + ... + 1041890.

It is an arithmetic number, because the mean of its divisors is an integer number (9799940150).

Almost surely, 2^123113031404 is an apocalyptic number.

It is an amenable number.

123113031404 is a deficient number, since it is larger than the sum of its proper divisors (112085532196).

123113031404 is a wasteful number, since it uses less digits than its factorization.

123113031404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1959473 (or 1959471 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 123113031404 its reverse (404130311321), we get a palindrome (527243342725).

The spelling of 123113031404 in words is "one hundred twenty-three billion, one hundred thirteen million, thirty-one thousand, four hundred four".