63020561231 has 2 divisors, whose sum is σ = 63020561232. Its totient is φ = 63020561230.

The previous prime is 63020561203. The next prime is 63020561239. The reversal of 63020561231 is 13216502036.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63020561231 - 2⁶ = 63020561167 is a prime.

It is a super-2 number, since 2×63020561231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63020561194 and 63020561203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63020561239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31510280615 + 31510280616.

It is an arithmetic number, because the mean of its divisors is an integer number (31510280616).

Almost surely, 2^63020561231 is an apocalyptic number.

63020561231 is a deficient number, since it is larger than the sum of its proper divisors (1).

63020561231 is an equidigital number, since it uses as much as digits as its factorization.

63020561231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The spelling of 63020561231 in words is "sixty-three billion, twenty million, five hundred sixty-one thousand, two hundred thirty-one".