31133111010113 has 8 divisors (see below), whose sum is σ = 35584738415232. Its totient is φ = 26682493634496.

The previous prime is 31133111010083. The next prime is 31133111010121. The reversal of 31133111010113 is 31101011133113.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31133111010113 - 2¹⁸ = 31133110747969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31133111015113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252441320 + ... + 252564617.

It is an arithmetic number, because the mean of its divisors is an integer number (4448092301904).

Almost surely, 2^{31133111010113} is an apocalyptic number.

It is an amenable number.

31133111010113 is a deficient number, since it is larger than the sum of its proper divisors (4451627405119).

31133111010113 is an equidigital number, since it uses as much as digits as its factorization.

31133111010113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505014751.

The product of its (nonzero) digits is 81, while the sum is 20.

Adding to 31133111010113 its reverse (31101011133113), we get a palindrome (62234122143226).

The spelling of 31133111010113 in words is "thirty-one trillion, one hundred thirty-three billion, one hundred eleven million, ten thousand, one hundred thirteen".