3131143143131 has 4 divisors (see below), whose sum is σ = 3267279801552. Its totient is φ = 2995006484712.

The previous prime is 3131143143101. The next prime is 3131143143169. The reversal of 3131143143131 is 1313413411313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3131143143131 - 2⁶ = 3131143143067 is a prime.

It is a super-2 number, since 2×3131143143131² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3131143143094 and 3131143143103.

It is not an unprimeable number, because it can be changed into a prime (3131143143101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68068329176 + ... + 68068329221.

It is an arithmetic number, because the mean of its divisors is an integer number (816819950388).

Almost surely, 2^{3131143143131} is an apocalyptic number.

3131143143131 is a deficient number, since it is larger than the sum of its proper divisors (136136658421).

3131143143131 is a wasteful number, since it uses less digits than its factorization.

3131143143131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136136658420.

The product of its digits is 3888, while the sum is 29.

Adding to 3131143143131 its reverse (1313413411313), we get a palindrome (4444556554444).

The spelling of 3131143143131 in words is "three trillion, one hundred thirty-one billion, one hundred forty-three million, one hundred forty-three thousand, one hundred thirty-one".