31400431010 has 32 divisors (see below), whose sum is σ = 60930696960. Its totient is φ = 11582163648.

The previous prime is 31400431001. The next prime is 31400431021. The reversal of 31400431010 is 1013400413.

It is a super-2 number, since 2×31400431010² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31400431010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4931 + ... + 250649.

It is an arithmetic number, because the mean of its divisors is an integer number (1904084280).

Almost surely, 2^31400431010 is an apocalyptic number.

31400431010 is a deficient number, since it is larger than the sum of its proper divisors (29530265950).

31400431010 is a wasteful number, since it uses less digits than its factorization.

31400431010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246722.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31400431010 its reverse (1013400413), we get a palindrome (32413831423).

The spelling of 31400431010 in words is "thirty-one billion, four hundred million, four hundred thirty-one thousand, ten".