31300020323112 has 64 divisors (see below), whose sum is σ = 81059247158400. Its totient is φ = 10064499061760.

The previous prime is 31300020323101. The next prime is 31300020323119. The reversal of 31300020323112 is 21132302000313.

It is not an unprimeable number, because it can be changed into a prime (31300020323119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178614468 + ... + 178789619.

It is an arithmetic number, because the mean of its divisors is an integer number (1266550736850).

Almost surely, 2^{31300020323112} is an apocalyptic number.

It is an amenable number.

31300020323112 is an abundant number, since it is smaller than the sum of its proper divisors (49759226835288).

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

31300020323112 is a wasteful number, since it uses less digits than its factorization.

31300020323112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357404226 (or 357404222 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31300020323112 its reverse (21132302000313), we get a palindrome (52432322323425).

The spelling of 31300020323112 in words is "thirty-one trillion, three hundred billion, twenty million, three hundred twenty-three thousand, one hundred twelve".