402433312231 has 2 divisors, whose sum is σ = 402433312232. Its totient is φ = 402433312230.

The previous prime is 402433312189. The next prime is 402433312273. The reversal of 402433312231 is 132213334204.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (402433312189) and next prime (402433312273).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402433312231 is a prime.

It is a super-2 number, since 2×402433312231² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 402433312231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402433312031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201216656115 + 201216656116.

It is an arithmetic number, because the mean of its divisors is an integer number (201216656116).

Almost surely, 2^402433312231 is an apocalyptic number.

402433312231 is a deficient number, since it is larger than the sum of its proper divisors (1).

402433312231 is an equidigital number, since it uses as much as digits as its factorization.

402433312231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 402433312231 its reverse (132213334204), we get a palindrome (534646646435).

The spelling of 402433312231 in words is "four hundred two billion, four hundred thirty-three million, three hundred twelve thousand, two hundred thirty-one".