431211320040344 has 32 divisors (see below), whose sum is σ = 815991095975040. Its totient is φ = 213615167270400.

The previous prime is 431211320040301. The next prime is 431211320040373. The reversal of 431211320040344 is 443040023112134.

It is a self number, because there is not a number n which added to its sum of digits gives 431211320040344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89707847 + ... + 94392374.

It is an arithmetic number, because the mean of its divisors is an integer number (25499721749220).

Almost surely, 2^{431211320040344} is an apocalyptic number.

It is an amenable number.

431211320040344 is a deficient number, since it is larger than the sum of its proper divisors (384779775934696).

431211320040344 is a wasteful number, since it uses less digits than its factorization.

431211320040344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184102931 (or 184102927 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 431211320040344 its reverse (443040023112134), we get a palindrome (874251343152478).

The spelling of 431211320040344 in words is "four hundred thirty-one trillion, two hundred eleven billion, three hundred twenty million, forty thousand, three hundred forty-four".