31430400032403 has 64 divisors (see below), whose sum is σ = 48908811571200. Its totient is φ = 19922351328000.

The previous prime is 31430400032377. The next prime is 31430400032411. The reversal of 31430400032403 is 30423000403413.

31430400032403 is a `hidden beast` number, since 3 + 14 + 3 + 0 + 400 + 0 + 3 + 240 + 3 = 666.

It is not a de Polignac number, because 31430400032403 - 2⁵ = 31430400032371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (31430400034403) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 84803233 + ... + 85173053.

It is an arithmetic number, because the mean of its divisors is an integer number (764200180800).

Almost surely, 2^{31430400032403} is an apocalyptic number.

31430400032403 is a deficient number, since it is larger than the sum of its proper divisors (17478411538797).

31430400032403 is a wasteful number, since it uses less digits than its factorization.

31430400032403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371641 (or 371635 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 31430400032403 its reverse (30423000403413), we get a palindrome (61853400435816).

The spelling of 31430400032403 in words is "thirty-one trillion, four hundred thirty billion, four hundred million, thirty-two thousand, four hundred three".