31202112003121 has 8 divisors (see below), whose sum is σ = 31419096480000. Its totient is φ = 30985729426080.

The previous prime is 31202112003077. The next prime is 31202112003173. The reversal of 31202112003121 is 12130021120213.

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

It is a cyclic number.

It is not a de Polignac number, because 31202112003121 - 2¹³ = 31202111994929 is a prime.

It is a super-2 number, since 2×31202112003121² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31202112003421) 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, 150370921 + ... + 150578278.

It is an arithmetic number, because the mean of its divisors is an integer number (3927387060000).

Almost surely, 2^{31202112003121} is an apocalyptic number.

It is an amenable number.

31202112003121 is a deficient number, since it is larger than the sum of its proper divisors (216984476879).

31202112003121 is a wasteful number, since it uses less digits than its factorization.

31202112003121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300949919.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 31202112003121 its reverse (12130021120213), we get a palindrome (43332133123334).

The spelling of 31202112003121 in words is "thirty-one trillion, two hundred two billion, one hundred twelve million, three thousand, one hundred twenty-one".