3203120131031 has 4 divisors (see below), whose sum is σ = 3203138598912. Its totient is φ = 3203101663152.

The previous prime is 3203120131021. The next prime is 3203120131051. The reversal of 3203120131031 is 1301310213023.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3203120131031 is a prime.

It is a super-2 number, since 2×3203120131031² (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 = 3203120130994 and 3203120131012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3203120131021) 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, 8971286 + ... + 9321491.

It is an arithmetic number, because the mean of its divisors is an integer number (800784649728).

Almost surely, 2^{3203120131031} is an apocalyptic number.

3203120131031 is a deficient number, since it is larger than the sum of its proper divisors (18467881).

3203120131031 is a wasteful number, since it uses less digits than its factorization.

3203120131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18467880.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 3203120131031 its reverse (1301310213023), we get a palindrome (4504430344054).

The spelling of 3203120131031 in words is "three trillion, two hundred three billion, one hundred twenty million, one hundred thirty-one thousand, thirty-one".