31122121033002 has 32 divisors (see below), whose sum is σ = 66036162355200. Its totient is φ = 9750652088688.

The previous prime is 31122121032967. The next prime is 31122121033007. The reversal of 31122121033002 is 20033012122113.

It is a super-3 number, since 3×31122121033002³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31122121033002.

It is not an unprimeable number, because it can be changed into a prime (31122121033007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1074792852 + ... + 1074821807.

It is an arithmetic number, because the mean of its divisors is an integer number (2063630073600).

Almost surely, 2^{31122121033002} is an apocalyptic number.

31122121033002 is an abundant number, since it is smaller than the sum of its proper divisors (34914041322198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31122121033002 is a wasteful number, since it uses less digits than its factorization.

31122121033002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149614810.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31122121033002 its reverse (20033012122113), we get a palindrome (51155133155115).

The spelling of 31122121033002 in words is "thirty-one trillion, one hundred twenty-two billion, one hundred twenty-one million, thirty-three thousand, two".