31023013331222 has 64 divisors (see below), whose sum is σ = 52103030893056. Its totient is φ = 13733959848960.

The previous prime is 31023013331197. The next prime is 31023013331249. The reversal of 31023013331222 is 22213331032013.

It is a super-2 number, since 2×31023013331222² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31023013331191 and 31023013331200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86605478 + ... + 86962950.

It is an arithmetic number, because the mean of its divisors is an integer number (814109857704).

Almost surely, 2^{31023013331222} is an apocalyptic number.

31023013331222 is a deficient number, since it is larger than the sum of its proper divisors (21080017561834).

31023013331222 is a wasteful number, since it uses less digits than its factorization.

31023013331222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358085.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 31023013331222 its reverse (22213331032013), we get a palindrome (53236344363235).

The spelling of 31023013331222 in words is "thirty-one trillion, twenty-three billion, thirteen million, three hundred thirty-one thousand, two hundred twenty-two".