31431424011 has 8 divisors (see below), whose sum is σ = 45132301200. Its totient is φ = 19342414752.

The previous prime is 31431423997. The next prime is 31431424097. The reversal of 31431424011 is 11042413413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31431424011 - 2⁵ = 31431423979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31431424811) 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, 402966936 + ... + 402967013.

It is an arithmetic number, because the mean of its divisors is an integer number (5641537650).

Almost surely, 2^31431424011 is an apocalyptic number.

31431424011 is a deficient number, since it is larger than the sum of its proper divisors (13700877189).

31431424011 is a wasteful number, since it uses less digits than its factorization.

31431424011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805933965.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 31431424011 its reverse (11042413413), we get a palindrome (42473837424).

The spelling of 31431424011 in words is "thirty-one billion, four hundred thirty-one million, four hundred twenty-four thousand, eleven".