42288725231 has 2 divisors, whose sum is σ = 42288725232. Its totient is φ = 42288725230.

The previous prime is 42288725191. The next prime is 42288725273. The reversal of 42288725231 is 13252788224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42288725231 - 2¹⁰ = 42288724207 is a prime.

It is a super-2 number, since 2×42288725231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42288725131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21144362615 + 21144362616.

It is an arithmetic number, because the mean of its divisors is an integer number (21144362616).

Almost surely, 2^42288725231 is an apocalyptic number.

42288725231 is a deficient number, since it is larger than the sum of its proper divisors (1).

42288725231 is an equidigital number, since it uses as much as digits as its factorization.

42288725231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 430080, while the sum is 44.

The spelling of 42288725231 in words is "forty-two billion, two hundred eighty-eight million, seven hundred twenty-five thousand, two hundred thirty-one".