31230022031123 has 4 divisors (see below), whose sum is σ = 31402563589488. Its totient is φ = 31057480472760.

The previous prime is 31230022031107. The next prime is 31230022031183. The reversal of 31230022031123 is 32113022003213.

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 31230022031123 - 2⁴ = 31230022031107 is a prime.

It is a super-2 number, since 2×31230022031123² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31230022031183) 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, 86270778911 + ... + 86270779272.

It is an arithmetic number, because the mean of its divisors is an integer number (7850640897372).

Almost surely, 2^{31230022031123} is an apocalyptic number.

31230022031123 is a deficient number, since it is larger than the sum of its proper divisors (172541558365).

31230022031123 is a wasteful number, since it uses less digits than its factorization.

31230022031123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172541558364.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31230022031123 its reverse (32113022003213), we get a palindrome (63343044034336).

The spelling of 31230022031123 in words is "thirty-one trillion, two hundred thirty billion, twenty-two million, thirty-one thousand, one hundred twenty-three".