113455113621 has 32 divisors (see below), whose sum is σ = 168338580480. Its totient is φ = 67602441984.

The previous prime is 113455113547. The next prime is 113455113631. The reversal of 113455113621 is 126311554311.

It is a happy number.

It is not a de Polignac number, because 113455113621 - 2¹⁰ = 113455112597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113455113631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184875 + ... + 510968.

It is an arithmetic number, because the mean of its divisors is an integer number (5260580640).

Almost surely, 2^113455113621 is an apocalyptic number.

It is an amenable number.

113455113621 is a deficient number, since it is larger than the sum of its proper divisors (54883466859).

113455113621 is a wasteful number, since it uses less digits than its factorization.

113455113621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696025.

The product of its digits is 10800, while the sum is 33.

Adding to 113455113621 its reverse (126311554311), we get a palindrome (239766667932).

The spelling of 113455113621 in words is "one hundred thirteen billion, four hundred fifty-five million, one hundred thirteen thousand, six hundred twenty-one".