31430411402 has 8 divisors (see below), whose sum is σ = 50772203076. Its totient is φ = 14506343712.

The previous prime is 31430411399. The next prime is 31430411407. The reversal of 31430411402 is 20411403413.

It can be written as a sum of positive squares in 2 ways, for example, as 27482676841 + 3947734561 = 165779^2 + 62831^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (31430411407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604430963 + ... + 604431014.

Almost surely, 2^31430411402 is an apocalyptic number.

31430411402 is a deficient number, since it is larger than the sum of its proper divisors (19341791674).

31430411402 is a wasteful number, since it uses less digits than its factorization.

31430411402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208861992.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31430411402 its reverse (20411403413), we get a palindrome (51841814815).

The spelling of 31430411402 in words is "thirty-one billion, four hundred thirty million, four hundred eleven thousand, four hundred two".