31112202220323 has 64 divisors (see below), whose sum is σ = 49534533823488. Its totient is φ = 16999239882240.

The previous prime is 31112202220259. The next prime is 31112202220373. The reversal of 31112202220323 is 32302220221113.

It is not a de Polignac number, because 31112202220323 - 2⁶ = 31112202220259 is a prime.

It is a super-2 number, since 2×31112202220323² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31112202220293 and 31112202220302.

It is not an unprimeable number, because it can be changed into a prime (31112202220373) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21207061 + ... + 22626617.

It is an arithmetic number, because the mean of its divisors is an integer number (773977090992).

Almost surely, 2^{31112202220323} is an apocalyptic number.

31112202220323 is a deficient number, since it is larger than the sum of its proper divisors (18422331603165).

31112202220323 is a wasteful number, since it uses less digits than its factorization.

31112202220323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420092.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31112202220323 its reverse (32302220221113), we get a palindrome (63414422441436).

The spelling of 31112202220323 in words is "thirty-one trillion, one hundred twelve billion, two hundred two million, two hundred twenty thousand, three hundred twenty-three".