31144500002140 has 36 divisors (see below), whose sum is σ = 76081564293336. Its totient is φ = 10678114286112.

The previous prime is 31144500002131. The next prime is 31144500002153. The reversal of 31144500002140 is 4120000544113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15890050042 + ... + 15890052001.

It is an arithmetic number, because the mean of its divisors is an integer number (2113376785926).

Almost surely, 2^{31144500002140} is an apocalyptic number.

It is an amenable number.

31144500002140 is an abundant number, since it is smaller than the sum of its proper divisors (44937064291196).

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

31144500002140 is a wasteful number, since it uses less digits than its factorization.

31144500002140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31780102066 (or 31780102057 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 31144500002140 its reverse (4120000544113), we get a palindrome (35264500546253).

The spelling of 31144500002140 in words is "thirty-one trillion, one hundred forty-four billion, five hundred million, two thousand, one hundred forty".