431401112402 has 16 divisors (see below), whose sum is σ = 701317444632. Its totient is φ = 197839998720.

The previous prime is 431401112393. The next prime is 431401112407. The reversal of 431401112402 is 204211104134.

It can be written as a sum of positive squares in 4 ways, for example, as 132234776881 + 299166335521 = 363641^2 + 546961^2 .

It is a super-2 number, since 2×431401112402² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (431401112407) 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, 52837799 + ... + 52845962.

Almost surely, 2^431401112402 is an apocalyptic number.

431401112402 is a deficient number, since it is larger than the sum of its proper divisors (269916332230).

431401112402 is a wasteful number, since it uses less digits than its factorization.

431401112402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105683933.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 431401112402 its reverse (204211104134), we get a palindrome (635612216536).

The spelling of 431401112402 in words is "four hundred thirty-one billion, four hundred one million, one hundred twelve thousand, four hundred two".