113820061965 has 16 divisors (see below), whose sum is σ = 184830191808. Its totient is φ = 59798002176.

The previous prime is 113820061961. The next prime is 113820061969. The reversal of 113820061965 is 569160028311.

It is an interprime number because it is at equal distance from previous prime (113820061961) and next prime (113820061969).

It is not a de Polignac number, because 113820061965 - 2² = 113820061961 is a prime.

It is a super-2 number, since 2×113820061965² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113820061961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56625892 + ... + 56627901.

It is an arithmetic number, because the mean of its divisors is an integer number (11551886988).

Almost surely, 2^113820061965 is an apocalyptic number.

113820061965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113820061965 is a deficient number, since it is larger than the sum of its proper divisors (71010129843).

113820061965 is a wasteful number, since it uses less digits than its factorization.

113820061965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113253868.

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 113820061965 in words is "one hundred thirteen billion, eight hundred twenty million, sixty-one thousand, nine hundred sixty-five".