31323011113 has 4 divisors (see below), whose sum is σ = 31325230080. Its totient is φ = 31320792148.

The previous prime is 31323011107. The next prime is 31323011119. The reversal of 31323011113 is 31111032313.

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 an interprime number because it is at equal distance from previous prime (31323011107) and next prime (31323011119).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31323011113 is a prime.

It is a super-2 number, since 2×31323011113² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31323011119) 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, 1088173 + ... + 1116586.

It is an arithmetic number, because the mean of its divisors is an integer number (7831307520).

Almost surely, 2^31323011113 is an apocalyptic number.

It is an amenable number.

31323011113 is a deficient number, since it is larger than the sum of its proper divisors (2218967).

31323011113 is a wasteful number, since it uses less digits than its factorization.

31323011113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218966.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 31323011113 its reverse (31111032313), we get a palindrome (62434043426).

The spelling of 31323011113 in words is "thirty-one billion, three hundred twenty-three million, eleven thousand, one hundred thirteen".