3131020121003 has 8 divisors (see below), whose sum is σ = 3132844881408. Its totient is φ = 3129195747304.

The previous prime is 3131020120897. The next prime is 3131020121011. The reversal of 3131020121003 is 3001210201313.

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 3131020121003 - 2³⁸ = 2856142214059 is a prime.

It is a super-3 number, since 3×3131020121003³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3131020121303) 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, 16970750 + ... + 17154252.

It is an arithmetic number, because the mean of its divisors is an integer number (391605610176).

Almost surely, 2^{3131020121003} is an apocalyptic number.

3131020121003 is a deficient number, since it is larger than the sum of its proper divisors (1824760405).

3131020121003 is a wasteful number, since it uses less digits than its factorization.

3131020121003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193353.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 3131020121003 its reverse (3001210201313), we get a palindrome (6132230322316).

The spelling of 3131020121003 in words is "three trillion, one hundred thirty-one billion, twenty million, one hundred twenty-one thousand, three".