113205061420 has 72 divisors (see below), whose sum is σ = 276678333792. Its totient is φ = 38743964160.

The previous prime is 113205061391. The next prime is 113205061423. The reversal of 113205061420 is 24160502311.

It is a happy number.

It is a super-2 number, since 2×113205061420² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113205061423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1334712 + ... + 1416991.

It is an arithmetic number, because the mean of its divisors is an integer number (3842754636).

Almost surely, 2^113205061420 is an apocalyptic number.

113205061420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113205061420 is an abundant number, since it is smaller than the sum of its proper divisors (163473272372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113205061420 is a wasteful number, since it uses less digits than its factorization.

113205061420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751751 (or 2751738 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 113205061420 its reverse (24160502311), we get a palindrome (137365563731).

The spelling of 113205061420 in words is "one hundred thirteen billion, two hundred five million, sixty-one thousand, four hundred twenty".