31222422311023 has 4 divisors (see below), whose sum is σ = 33059035388160. Its totient is φ = 29385809233888.

The previous prime is 31222422310951. The next prime is 31222422311033. The reversal of 31222422311023 is 32011322422213.

It is a happy number.

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 31222422311023 - 2⁹ = 31222422310511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31222422310982 and 31222422311000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31222422311033) 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, 918306538543 + ... + 918306538576.

It is an arithmetic number, because the mean of its divisors is an integer number (8264758847040).

Almost surely, 2^{31222422311023} is an apocalyptic number.

31222422311023 is a deficient number, since it is larger than the sum of its proper divisors (1836613077137).

31222422311023 is a wasteful number, since it uses less digits than its factorization.

31222422311023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836613077136.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31222422311023 its reverse (32011322422213), we get a palindrome (63233744733236).

The spelling of 31222422311023 in words is "thirty-one trillion, two hundred twenty-two billion, four hundred twenty-two million, three hundred eleven thousand, twenty-three".