31045761120020 has 24 divisors (see below), whose sum is σ = 65627860599168. Its totient is φ = 12336064020000.

The previous prime is 31045761120019. The next prime is 31045761120097. The reversal of 31045761120020 is 2002116754013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5140023656 + ... + 5140029695.

It is an arithmetic number, because the mean of its divisors is an integer number (2734494191632).

Almost surely, 2^{31045761120020} is an apocalyptic number.

It is an amenable number.

31045761120020 is an abundant number, since it is smaller than the sum of its proper divisors (34582099479148).

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

31045761120020 is a wasteful number, since it uses less digits than its factorization.

31045761120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10280053511 (or 10280053509 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

Adding to 31045761120020 its reverse (2002116754013), we get a palindrome (33047877874033).

The spelling of 31045761120020 in words is "thirty-one trillion, forty-five billion, seven hundred sixty-one million, one hundred twenty thousand, twenty".