31253433042140 has 48 divisors (see below), whose sum is σ = 67896644407200. Its totient is φ = 12070068202752.

The previous prime is 31253433042109. The next prime is 31253433042149. The reversal of 31253433042140 is 4124033435213.

It is a self number, because there is not a number n which added to its sum of digits gives 31253433042140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31253433042149) 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, 32816147 + ... + 33755093.

It is an arithmetic number, because the mean of its divisors is an integer number (1414513425150).

Almost surely, 2^{31253433042140} is an apocalyptic number.

It is an amenable number.

31253433042140 is an abundant number, since it is smaller than the sum of its proper divisors (36643211365060).

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

31253433042140 is a wasteful number, since it uses less digits than its factorization.

31253433042140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996374 (or 996372 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 31253433042140 its reverse (4124033435213), we get a palindrome (35377466477353).

The spelling of 31253433042140 in words is "thirty-one trillion, two hundred fifty-three billion, four hundred thirty-three million, forty-two thousand, one hundred forty".