31220321122983 has 8 divisors (see below), whose sum is σ = 41628071177728. Its totient is φ = 20813059241784.

The previous prime is 31220321122973. The next prime is 31220321123011. The reversal of 31220321122983 is 38922112302213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31220321122983 - 2¹⁶ = 31220321057447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31220321122943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121894135 + ... + 122149992.

It is an arithmetic number, because the mean of its divisors is an integer number (5203508897216).

Almost surely, 2^{31220321122983} is an apocalyptic number.

31220321122983 is a deficient number, since it is larger than the sum of its proper divisors (10407750054745).

31220321122983 is a wasteful number, since it uses less digits than its factorization.

31220321122983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244086773.

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 31220321122983 in words is "thirty-one trillion, two hundred twenty billion, three hundred twenty-one million, one hundred twenty-two thousand, nine hundred eighty-three".