42102223231 has 2 divisors, whose sum is σ = 42102223232. Its totient is φ = 42102223230.

The previous prime is 42102223169. The next prime is 42102223243. The reversal of 42102223231 is 13232220124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42102223231 - 2¹⁷ = 42102092159 is a prime.

It is a super-2 number, since 2×42102223231² (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 (42102223831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21051111615 + 21051111616.

It is an arithmetic number, because the mean of its divisors is an integer number (21051111616).

Almost surely, 2^42102223231 is an apocalyptic number.

42102223231 is a deficient number, since it is larger than the sum of its proper divisors (1).

42102223231 is an equidigital number, since it uses as much as digits as its factorization.

42102223231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 42102223231 its reverse (13232220124), we get a palindrome (55334443355).

The spelling of 42102223231 in words is "forty-two billion, one hundred two million, two hundred twenty-three thousand, two hundred thirty-one".