113210661501 has 64 divisors (see below), whose sum is σ = 195433136640. Its totient is φ = 63426654720.

The previous prime is 113210661491. The next prime is 113210661541. The reversal of 113210661501 is 105166012311.

113210661501 is a `hidden beast` number, since 1 + 1 + 32 + 10 + 6 + 615 + 0 + 1 = 666.

It is not a de Polignac number, because 113210661501 - 2¹¹ = 113210659453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113210661541) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18638601 + ... + 18644673.

It is an arithmetic number, because the mean of its divisors is an integer number (3053642760).

Almost surely, 2^113210661501 is an apocalyptic number.

It is an amenable number.

113210661501 is a deficient number, since it is larger than the sum of its proper divisors (82222475139).

113210661501 is a wasteful number, since it uses less digits than its factorization.

113210661501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8003 (or 7997 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

Adding to 113210661501 its reverse (105166012311), we get a palindrome (218376673812).

The spelling of 113210661501 in words is "one hundred thirteen billion, two hundred ten million, six hundred sixty-one thousand, five hundred one".