113321400431421 has 32 divisors (see below), whose sum is σ = 188203845795840. Its totient is φ = 59053757713344.

The previous prime is 113321400431399. The next prime is 113321400431429. The reversal of 113321400431421 is 124134004123311.

It is not a de Polignac number, because 113321400431421 - 2¹⁰ = 113321400430397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113321400431429) 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, 2500559901 + ... + 2500605218.

It is an arithmetic number, because the mean of its divisors is an integer number (5881370181120).

Almost surely, 2^{113321400431421} is an apocalyptic number.

It is an amenable number.

113321400431421 is a deficient number, since it is larger than the sum of its proper divisors (74882445364419).

113321400431421 is a wasteful number, since it uses less digits than its factorization.

113321400431421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001165225.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 113321400431421 its reverse (124134004123311), we get a palindrome (237455404554732).

The spelling of 113321400431421 in words is "one hundred thirteen trillion, three hundred twenty-one billion, four hundred million, four hundred thirty-one thousand, four hundred twenty-one".