31430473461 has 12 divisors (see below), whose sum is σ = 45757051392. Its totient is φ = 20788658856.

The previous prime is 31430473367. The next prime is 31430473469. The reversal of 31430473461 is 16437403413.

31430473461 is a `hidden beast` number, since 3 + 1 + 4 + 304 + 7 + 346 + 1 = 666.

It is not a de Polignac number, because 31430473461 - 2¹⁷ = 31430342389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31430473469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13747971 + ... + 13750256.

It is an arithmetic number, because the mean of its divisors is an integer number (3813087616).

Almost surely, 2^31430473461 is an apocalyptic number.

It is an amenable number.

31430473461 is a deficient number, since it is larger than the sum of its proper divisors (14326577931).

31430473461 is a wasteful number, since it uses less digits than its factorization.

31430473461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27498360 (or 27498357 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

Adding to 31430473461 its reverse (16437403413), we get a palindrome (47867876874).

The spelling of 31430473461 in words is "thirty-one billion, four hundred thirty million, four hundred seventy-three thousand, four hundred sixty-one".