31232112023311 has 4 divisors (see below), whose sum is σ = 32590029937392. Its totient is φ = 29874194109232.

The previous prime is 31232112023309. The next prime is 31232112023341. The reversal of 31232112023311 is 11332021123213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31232112023311 - 2¹ = 31232112023309 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 (31232112023341) 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, 678958957006 + ... + 678958957051.

It is an arithmetic number, because the mean of its divisors is an integer number (8147507484348).

Almost surely, 2^{31232112023311} is an apocalyptic number.

31232112023311 is a deficient number, since it is larger than the sum of its proper divisors (1357917914081).

31232112023311 is a wasteful number, since it uses less digits than its factorization.

31232112023311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357917914080.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31232112023311 its reverse (11332021123213), we get a palindrome (42564133146524).

The spelling of 31232112023311 in words is "thirty-one trillion, two hundred thirty-two billion, one hundred twelve million, twenty-three thousand, three hundred eleven".