3135023131681 has 64 divisors (see below), whose sum is σ = 3912194930688. Its totient is φ = 2451150471168.

The previous prime is 3135023131657. The next prime is 3135023131699. The reversal of 3135023131681 is 1861313205313.

It is not a de Polignac number, because 3135023131681 - 2³⁵ = 3100663393313 is a prime.

It is a super-2 number, since 2×3135023131681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3135023131681.

It is not an unprimeable number, because it can be changed into a prime (3135023131601) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1209031921 + ... + 1209034513.

It is an arithmetic number, because the mean of its divisors is an integer number (61128045792).

Almost surely, 2^{3135023131681} is an apocalyptic number.

It is an amenable number.

3135023131681 is a deficient number, since it is larger than the sum of its proper divisors (777171799007).

3135023131681 is a wasteful number, since it uses less digits than its factorization.

3135023131681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4690.

The product of its (nonzero) digits is 38880, while the sum is 37.

Adding to 3135023131681 its reverse (1861313205313), we get a palindrome (4996336336994).

The spelling of 3135023131681 in words is "three trillion, one hundred thirty-five billion, twenty-three million, one hundred thirty-one thousand, six hundred eighty-one".