31113213001121 has 8 divisors (see below), whose sum is σ = 31775802038784. Its totient is φ = 30450649204480.

The previous prime is 31113213001081. The next prime is 31113213001127. The reversal of 31113213001121 is 12110031231113.

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

It is a cyclic number.

It is not a de Polignac number, because 31113213001121 - 2²² = 31113208806817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31113213001093 and 31113213001102.

It is not an unprimeable number, because it can be changed into a prime (31113213001127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3808265 + ... + 8759526.

It is an arithmetic number, because the mean of its divisors is an integer number (3971975254848).

Almost surely, 2^{31113213001121} is an apocalyptic number.

It is an amenable number.

31113213001121 is a deficient number, since it is larger than the sum of its proper divisors (662589037663).

31113213001121 is a wasteful number, since it uses less digits than its factorization.

31113213001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12620511.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 31113213001121 its reverse (12110031231113), we get a palindrome (43223244232234).

The spelling of 31113213001121 in words is "thirty-one trillion, one hundred thirteen billion, two hundred thirteen million, one thousand, one hundred twenty-one".