123813554954 has 4 divisors (see below), whose sum is σ = 185720332434. Its totient is φ = 61906777476.

The previous prime is 123813554903. The next prime is 123813554993. The reversal of 123813554954 is 459455318321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 122726204329 + 1087350625 = 350323^2 + 32975^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30953388737 + ... + 30953388740.

Almost surely, 2^123813554954 is an apocalyptic number.

123813554954 is a deficient number, since it is larger than the sum of its proper divisors (61906777480).

123813554954 is an equidigital number, since it uses as much as digits as its factorization.

123813554954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61906777479.

The product of its digits is 2592000, while the sum is 50.

The spelling of 123813554954 in words is "one hundred twenty-three billion, eight hundred thirteen million, five hundred fifty-four thousand, nine hundred fifty-four".