313132112101 has 4 divisors (see below), whose sum is σ = 329612749600. Its totient is φ = 296651474604.

The previous prime is 313132112099. The next prime is 313132112107. The reversal of 313132112101 is 101211231313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101211231313 = 128389 ⋅788317.

It is a cyclic number.

It is not a de Polignac number, because 313132112101 - 2¹ = 313132112099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 16480637479 = 313132112101 / (3 + 1 + 3 + 1 + 3 + 2 + 1 + 1 + 2 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313132112107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8240318721 + ... + 8240318758.

It is an arithmetic number, because the mean of its divisors is an integer number (82403187400).

Almost surely, 2^313132112101 is an apocalyptic number.

It is an amenable number.

313132112101 is a deficient number, since it is larger than the sum of its proper divisors (16480637499).

313132112101 is a wasteful number, since it uses less digits than its factorization.

313132112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16480637498.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 313132112101 its reverse (101211231313), we get a palindrome (414343343414).

The spelling of 313132112101 in words is "three hundred thirteen billion, one hundred thirty-two million, one hundred twelve thousand, one hundred one".