31020022211323 has 4 divisors (see below), whose sum is σ = 31182430704768. Its totient is φ = 30857613717880.

The previous prime is 31020022211291. The next prime is 31020022211329. The reversal of 31020022211323 is 32311222002013.

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 31020022211323 - 2⁵ = 31020022211291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31020022211294 and 31020022211303.

It is not an unprimeable number, because it can be changed into a prime (31020022211329) 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, 81204246436 + ... + 81204246817.

It is an arithmetic number, because the mean of its divisors is an integer number (7795607676192).

Almost surely, 2^{31020022211323} is an apocalyptic number.

31020022211323 is a deficient number, since it is larger than the sum of its proper divisors (162408493445).

31020022211323 is a wasteful number, since it uses less digits than its factorization.

31020022211323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162408493444.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31020022211323 its reverse (32311222002013), we get a palindrome (63331244213336).

The spelling of 31020022211323 in words is "thirty-one trillion, twenty billion, twenty-two million, two hundred eleven thousand, three hundred twenty-three".