31012130111 has 8 divisors (see below), whose sum is σ = 31481505600. Its totient is φ = 30544675200.

The previous prime is 31012130069. The next prime is 31012130117. The reversal of 31012130111 is 11103121013.

It is a happy number.

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 31012130111 - 2⁶ = 31012130047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31012130117) 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, 447590 + ... + 512211.

It is an arithmetic number, because the mean of its divisors is an integer number (3935188200).

Almost surely, 2^31012130111 is an apocalyptic number.

31012130111 is a deficient number, since it is larger than the sum of its proper divisors (469375489).

31012130111 is an equidigital number, since it uses as much as digits as its factorization.

31012130111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960289.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 31012130111 its reverse (11103121013), we get a palindrome (42115251124).

The spelling of 31012130111 in words is "thirty-one billion, twelve million, one hundred thirty thousand, one hundred eleven".