31203034102140 has 48 divisors (see below), whose sum is σ = 87372705248640. Its totient is φ = 8320408164160.

The previous prime is 31203034102103. The next prime is 31203034102159. The reversal of 31203034102140 is 4120143030213.

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 31203034102140.

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, 11272410 + ... + 13764929.

It is an arithmetic number, because the mean of its divisors is an integer number (1820264692680).

Almost surely, 2^{31203034102140} is an apocalyptic number.

31203034102140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31203034102140 is an abundant number, since it is smaller than the sum of its proper divisors (56169671146500).

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

31203034102140 is a wasteful number, since it uses less digits than its factorization.

31203034102140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25058122 (or 25058120 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31203034102140 its reverse (4120143030213), we get a palindrome (35323177132353).

The spelling of 31203034102140 in words is "thirty-one trillion, two hundred three billion, thirty-four million, one hundred two thousand, one hundred forty".