3561131332751 has 2 divisors, whose sum is σ = 3561131332752. Its totient is φ = 3561131332750.

The previous prime is 3561131332709. The next prime is 3561131332859. The reversal of 3561131332751 is 1572331311653.

It is a weak prime.

It is an emirp because it is prime and its reverse (1572331311653) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3561131332751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3561131332699 and 3561131332708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3561131332351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1780565666375 + 1780565666376.

It is an arithmetic number, because the mean of its divisors is an integer number (1780565666376).

Almost surely, 2^{3561131332751} is an apocalyptic number.

3561131332751 is a deficient number, since it is larger than the sum of its proper divisors (1).

3561131332751 is an equidigital number, since it uses as much as digits as its factorization.

3561131332751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 170100, while the sum is 41.

The spelling of 3561131332751 in words is "three trillion, five hundred sixty-one billion, one hundred thirty-one million, three hundred thirty-two thousand, seven hundred fifty-one".