31434421013020 has 12 divisors (see below), whose sum is σ = 66012284127384. Its totient is φ = 12573768405200.

The previous prime is 31434421013011. The next prime is 31434421013041. The reversal of 31434421013020 is 2031012443413.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31434421013020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 785860525306 + ... + 785860525345.

It is an arithmetic number, because the mean of its divisors is an integer number (5501023677282).

Almost surely, 2^{31434421013020} is an apocalyptic number.

It is an amenable number.

31434421013020 is an abundant number, since it is smaller than the sum of its proper divisors (34577863114364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31434421013020 is a wasteful number, since it uses less digits than its factorization.

31434421013020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571721050660 (or 1571721050658 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31434421013020 its reverse (2031012443413), we get a palindrome (33465433456433).

The spelling of 31434421013020 in words is "thirty-one trillion, four hundred thirty-four billion, four hundred twenty-one million, thirteen thousand, twenty".