113413443021 has 12 divisors (see below), whose sum is σ = 164208542940. Its totient is φ = 75429365760.

The previous prime is 113413443007. The next prime is 113413443023. The reversal of 113413443021 is 120344314311.

113413443021 is a `hidden beast` number, since 1 + 13 + 4 + 1 + 344 + 302 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8922880521 + 104490562500 = 94461^2 + 323250^2 .

It is not a de Polignac number, because 113413443021 - 2¹³ = 113413434829 is a prime.

It is a super-2 number, since 2×113413443021² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113413443023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14962356 + ... + 14969933.

It is an arithmetic number, because the mean of its divisors is an integer number (13684045245).

Almost surely, 2^113413443021 is an apocalyptic number.

It is an amenable number.

113413443021 is a deficient number, since it is larger than the sum of its proper divisors (50795099919).

113413443021 is a wasteful number, since it uses less digits than its factorization.

113413443021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29932716 (or 29932713 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 113413443021 its reverse (120344314311), we get a palindrome (233757757332).

The spelling of 113413443021 in words is "one hundred thirteen billion, four hundred thirteen million, four hundred forty-three thousand, twenty-one".