402012310430 has 16 divisors (see below), whose sum is σ = 724322682864. Its totient is φ = 160649252160.

The previous prime is 402012310397. The next prime is 402012310433. The reversal of 402012310430 is 34013210204.

It is a super-2 number, since 2×402012310430² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402012310433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19448156 + ... + 19468815.

It is an arithmetic number, because the mean of its divisors is an integer number (45270167679).

Almost surely, 2^402012310430 is an apocalyptic number.

402012310430 is a deficient number, since it is larger than the sum of its proper divisors (322310372434).

402012310430 is a wasteful number, since it uses less digits than its factorization.

402012310430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38918011.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 402012310430 its reverse (34013210204), we get a palindrome (436025520634).

The spelling of 402012310430 in words is "four hundred two billion, twelve million, three hundred ten thousand, four hundred thirty".