31403143342 has 64 divisors (see below), whose sum is σ = 53778816000. Its totient is φ = 13661125632.

The previous prime is 31403143339. The next prime is 31403143391. The reversal of 31403143342 is 24334130413.

It is a self number, because there is not a number n which added to its sum of digits gives 31403143342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11505834 + ... + 11508562.

It is an arithmetic number, because the mean of its divisors is an integer number (840294000).

Almost surely, 2^31403143342 is an apocalyptic number.

31403143342 is a deficient number, since it is larger than the sum of its proper divisors (22375672658).

31403143342 is a wasteful number, since it uses less digits than its factorization.

31403143342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 31403143342 its reverse (24334130413), we get a palindrome (55737273755).

The spelling of 31403143342 in words is "thirty-one billion, four hundred three million, one hundred forty-three thousand, three hundred forty-two".