31404323321451 has 12 divisors (see below), whose sum is σ = 45361849224120. Its totient is φ = 20936192991840.

The previous prime is 31404323321429. The next prime is 31404323321453. The reversal of 31404323321451 is 15412332340413.

31404323321451 is a `hidden beast` number, since 3 + 1 + 4 + 0 + 4 + 323 + 321 + 4 + 5 + 1 = 666.

It is not a de Polignac number, because 31404323321451 - 2⁶ = 31404323321387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31404323321453) 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, 13990756 + ... + 16079486.

It is an arithmetic number, because the mean of its divisors is an integer number (3780154102010).

Almost surely, 2^{31404323321451} is an apocalyptic number.

31404323321451 is a deficient number, since it is larger than the sum of its proper divisors (13957525902669).

31404323321451 is a wasteful number, since it uses less digits than its factorization.

31404323321451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3759306 (or 3759303 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 31404323321451 its reverse (15412332340413), we get a palindrome (46816655661864).

The spelling of 31404323321451 in words is "thirty-one trillion, four hundred four billion, three hundred twenty-three million, three hundred twenty-one thousand, four hundred fifty-one".