31301320222133 has 12 divisors (see below), whose sum is σ = 33935313827808. Its totient is φ = 28858588471440.

The previous prime is 31301320222061. The next prime is 31301320222153. The reversal of 31301320222133 is 33122202310313.

It is not a de Polignac number, because 31301320222133 - 2¹⁶ = 31301320156597 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 (31301320222153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111840233 + ... + 112119758.

It is an arithmetic number, because the mean of its divisors is an integer number (2827942818984).

Almost surely, 2^{31301320222133} is an apocalyptic number.

It is an amenable number.

31301320222133 is a deficient number, since it is larger than the sum of its proper divisors (2633993605675).

31301320222133 is a wasteful number, since it uses less digits than its factorization.

31301320222133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223960844 (or 223960831 counting only the distinct ones).

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

Adding to 31301320222133 its reverse (33122202310313), we get a palindrome (64423522532446).

The spelling of 31301320222133 in words is "thirty-one trillion, three hundred one billion, three hundred twenty million, two hundred twenty-two thousand, one hundred thirty-three".