31133211233113 has 4 divisors (see below), whose sum is σ = 33963503163408. Its totient is φ = 28302919302820.

The previous prime is 31133211233071. The next prime is 31133211233147.

It is a happy number.

31133211233113 is nontrivially palindromic in base 10.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31133211233113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31133211333113) 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, 1415145965131 + ... + 1415145965152.

It is an arithmetic number, because the mean of its divisors is an integer number (8490875790852).

Almost surely, 2^{31133211233113} is an apocalyptic number.

It is an amenable number.

31133211233113 is a deficient number, since it is larger than the sum of its proper divisors (2830291930295).

31133211233113 is a wasteful number, since it uses less digits than its factorization.

31133211233113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830291930294.

The product of its digits is 2916, while the sum is 28.

It can be divided in two parts, 3113321 and 1233113, that added together give a palindrome (4346434).

The spelling of 31133211233113 in words is "thirty-one trillion, one hundred thirty-three billion, two hundred eleven million, two hundred thirty-three thousand, one hundred thirteen".