9920263017631 has 2 divisors, whose sum is σ = 9920263017632. Its totient is φ = 9920263017630.

The previous prime is 9920263017593. The next prime is 9920263017653. The reversal of 9920263017631 is 1367103620299.

9920263017631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9920263017631 - 2⁴³ = 1124169995423 is a prime.

It is a super-2 number, since 2×9920263017631² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9920263017661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4960131508815 + 4960131508816.

It is an arithmetic number, because the mean of its divisors is an integer number (4960131508816).

Almost surely, 2^{9920263017631} is an apocalyptic number.

9920263017631 is a deficient number, since it is larger than the sum of its proper divisors (1).

9920263017631 is an equidigital number, since it uses as much as digits as its factorization.

9920263017631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 49.

The spelling of 9920263017631 in words is "nine trillion, nine hundred twenty billion, two hundred sixty-three million, seventeen thousand, six hundred thirty-one".