123465432554 has 4 divisors (see below), whose sum is σ = 185198148834. Its totient is φ = 61732716276.

The previous prime is 123465432527. The next prime is 123465432577. The reversal of 123465432554 is 455234564321.

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., 122608524025 + 856908529 = 350155^2 + 29273^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30866358137 + ... + 30866358140.

Almost surely, 2^123465432554 is an apocalyptic number.

123465432554 is a deficient number, since it is larger than the sum of its proper divisors (61732716280).

123465432554 is an equidigital number, since it uses as much as digits as its factorization.

123465432554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61732716279.

The product of its digits is 1728000, while the sum is 44.

Adding to 123465432554 its reverse (455234564321), we get a palindrome (578699996875).

The spelling of 123465432554 in words is "one hundred twenty-three billion, four hundred sixty-five million, four hundred thirty-two thousand, five hundred fifty-four".