3123013631 has 2 divisors, whose sum is σ = 3123013632. Its totient is φ = 3123013630.

The previous prime is 3123013571. The next prime is 3123013637. The reversal of 3123013631 is 1363103213.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1363103213) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3123013631 is a prime.

It is a super-2 number, since 2×3123013631² = 19506428278823608322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3123013597 and 3123013606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123013637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561506815 + 1561506816.

It is an arithmetic number, because the mean of its divisors is an integer number (1561506816).

Almost surely, 2^3123013631 is an apocalyptic number.

3123013631 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123013631 is an equidigital number, since it uses as much as digits as its factorization.

3123013631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 3123013631 is about 55883.9299888617. The cubic root of 3123013631 is about 1461.6990339460.

Adding to 3123013631 its reverse (1363103213), we get a palindrome (4486116844).

The spelling of 3123013631 in words is "three billion, one hundred twenty-three million, thirteen thousand, six hundred thirty-one".