31436144712020 has 48 divisors (see below), whose sum is σ = 70089653652480. Its totient is φ = 11802536477184.

The previous prime is 31436144712017. The next prime is 31436144712053. The reversal of 31436144712020 is 2021744163413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125841500 + ... + 126091059.

It is an arithmetic number, because the mean of its divisors is an integer number (1460201117760).

Almost surely, 2^{31436144712020} is an apocalyptic number.

It is an amenable number.

31436144712020 is an abundant number, since it is smaller than the sum of its proper divisors (38653508940460).

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

31436144712020 is a wasteful number, since it uses less digits than its factorization.

31436144712020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251932952 (or 251932950 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

Adding to 31436144712020 its reverse (2021744163413), we get a palindrome (33457888875433).

The spelling of 31436144712020 in words is "thirty-one trillion, four hundred thirty-six billion, one hundred forty-four million, seven hundred twelve thousand, twenty".