31103142310140 has 48 divisors (see below), whose sum is σ = 87091819799040. Its totient is φ = 8293883536960.

The previous prime is 31103142310139. The next prime is 31103142310151. The reversal of 31103142310140 is 4101324130113.

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 31103142310140.

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, 7245360 + ... + 10709879.

It is an arithmetic number, because the mean of its divisors is an integer number (1814412912480).

Almost surely, 2^{31103142310140} is an apocalyptic number.

31103142310140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31103142310140 is an abundant number, since it is smaller than the sum of its proper divisors (55988677488900).

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

31103142310140 is a wasteful number, since it uses less digits than its factorization.

31103142310140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17984122 (or 17984120 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 31103142310140 its reverse (4101324130113), we get a palindrome (35204466440253).

The spelling of 31103142310140 in words is "thirty-one trillion, one hundred three billion, one hundred forty-two million, three hundred ten thousand, one hundred forty".