23313315554 has 4 divisors (see below), whose sum is σ = 34969973334. Its totient is φ = 11656657776.

The previous prime is 23313315539. The next prime is 23313315569. The reversal of 23313315554 is 45551331332.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (23313315539) and next prime (23313315569).

It can be written as a sum of positive squares in only one way, i.e., 23249235529 + 64080025 = 152477^2 + 8005^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5828328887 + ... + 5828328890.

Almost surely, 2^23313315554 is an apocalyptic number.

23313315554 is a deficient number, since it is larger than the sum of its proper divisors (11656657780).

23313315554 is a wasteful number, since it uses less digits than its factorization.

23313315554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11656657779.

The product of its digits is 81000, while the sum is 35.

Adding to 23313315554 its reverse (45551331332), we get a palindrome (68864646886).

The spelling of 23313315554 in words is "twenty-three billion, three hundred thirteen million, three hundred fifteen thousand, five hundred fifty-four".