113213121554 has 16 divisors (see below), whose sum is σ = 184322761728. Its totient is φ = 51840773712.

The previous prime is 113213121533. The next prime is 113213121583. The reversal of 113213121554 is 455121312311.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17139812 + ... + 17146415.

It is an arithmetic number, because the mean of its divisors is an integer number (11520172608).

Almost surely, 2^113213121554 is an apocalyptic number.

113213121554 is a deficient number, since it is larger than the sum of its proper divisors (71109640174).

113213121554 is a wasteful number, since it uses less digits than its factorization.

113213121554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34286369.

The product of its digits is 3600, while the sum is 29.

Adding to 113213121554 its reverse (455121312311), we get a palindrome (568334433865).

The spelling of 113213121554 in words is "one hundred thirteen billion, two hundred thirteen million, one hundred twenty-one thousand, five hundred fifty-four".