40222423231 has 2 divisors, whose sum is σ = 40222423232. Its totient is φ = 40222423230.

The previous prime is 40222423223. The next prime is 40222423289. The reversal of 40222423231 is 13232422204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40222423231 - 2³ = 40222423223 is a prime.

It is a super-2 number, since 2×40222423231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40222423196 and 40222423205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40222423211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20111211615 + 20111211616.

It is an arithmetic number, because the mean of its divisors is an integer number (20111211616).

Almost surely, 2^40222423231 is an apocalyptic number.

40222423231 is a deficient number, since it is larger than the sum of its proper divisors (1).

40222423231 is an equidigital number, since it uses as much as digits as its factorization.

40222423231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 40222423231 its reverse (13232422204), we get a palindrome (53454845435).

The spelling of 40222423231 in words is "forty billion, two hundred twenty-two million, four hundred twenty-three thousand, two hundred thirty-one".