402202031293 has 2 divisors, whose sum is σ = 402202031294. Its totient is φ = 402202031292.

The previous prime is 402202031267. The next prime is 402202031321. The reversal of 402202031293 is 392130202204.

It is an a-pointer prime, because the next prime (402202031321) can be obtained adding 402202031293 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 372542991769 + 29659039524 = 610363^2 + 172218^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402202031293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402202031093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201101015646 + 201101015647.

It is an arithmetic number, because the mean of its divisors is an integer number (201101015647).

Almost surely, 2^402202031293 is an apocalyptic number.

It is an amenable number.

402202031293 is a deficient number, since it is larger than the sum of its proper divisors (1).

402202031293 is an equidigital number, since it uses as much as digits as its factorization.

402202031293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 402202031293 its reverse (392130202204), we get a palindrome (794332233497).

The spelling of 402202031293 in words is "four hundred two billion, two hundred two million, thirty-one thousand, two hundred ninety-three".