2115152001631 has 2 divisors, whose sum is σ = 2115152001632. Its totient is φ = 2115152001630.

The previous prime is 2115152001527. The next prime is 2115152001637. The reversal of 2115152001631 is 1361002515112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2115152001631 is a prime.

It is a super-2 number, since 2×2115152001631² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2115152001631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2115152001637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057576000815 + 1057576000816.

It is an arithmetic number, because the mean of its divisors is an integer number (1057576000816).

Almost surely, 2^{2115152001631} is an apocalyptic number.

2115152001631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115152001631 is an equidigital number, since it uses as much as digits as its factorization.

2115152001631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 28.

Adding to 2115152001631 its reverse (1361002515112), we get a palindrome (3476154516743).

The spelling of 2115152001631 in words is "two trillion, one hundred fifteen billion, one hundred fifty-two million, one thousand, six hundred thirty-one".