3131311201 has 2 divisors, whose sum is σ = 3131311202. Its totient is φ = 3131311200.

The previous prime is 3131311199. The next prime is 3131311219. The reversal of 3131311201 is 1021131313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2992637025 + 138674176 = 54705^2 + 11776^2 .

It is a cyclic number.

It is not a de Polignac number, because 3131311201 - 2¹ = 3131311199 is a prime.

Together with 3131311199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3132311201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565655600 + 1565655601.

It is an arithmetic number, because the mean of its divisors is an integer number (1565655601).

Almost surely, 2^3131311201 is an apocalyptic number.

It is an amenable number.

3131311201 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131311201 is an equidigital number, since it uses as much as digits as its factorization.

3131311201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 3131311201 is about 55958.1200631329. The cubic root of 3131311201 is about 1462.9924240085.

Adding to 3131311201 its reverse (1021131313), we get a palindrome (4152442514).

The spelling of 3131311201 in words is "three billion, one hundred thirty-one million, three hundred eleven thousand, two hundred one".