31302320011140 has 48 divisors (see below), whose sum is σ = 87792330568320. Its totient is φ = 8333396332800.

The previous prime is 31302320011129. The next prime is 31302320011153. The reversal of 31302320011140 is 4111002320313.

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, 433995000 + ... + 434067119.

It is an arithmetic number, because the mean of its divisors is an integer number (1829006886840).

Almost surely, 2^{31302320011140} is an apocalyptic number.

31302320011140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31302320011140 is an abundant number, since it is smaller than the sum of its proper divisors (56490010557180).

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

31302320011140 is a wasteful number, since it uses less digits than its factorization.

31302320011140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868062732 (or 868062730 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31302320011140 its reverse (4111002320313), we get a palindrome (35413322331453).

The spelling of 31302320011140 in words is "thirty-one trillion, three hundred two billion, three hundred twenty million, eleven thousand, one hundred forty".