31144132204140 has 48 divisors (see below), whose sum is σ = 90016588569600. Its totient is φ = 8037195407040.

The previous prime is 31144132204051. The next prime is 31144132204177. The reversal of 31144132204140 is 4140223144113.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 31144132204098 and 31144132204107.

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, 8372076690 + ... + 8372080409.

It is an arithmetic number, because the mean of its divisors is an integer number (1875345595200).

Almost surely, 2^{31144132204140} is an apocalyptic number.

31144132204140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31144132204140 is an abundant number, since it is smaller than the sum of its proper divisors (58872456365460).

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

31144132204140 is a wasteful number, since it uses less digits than its factorization.

31144132204140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16744157142 (or 16744157140 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 31144132204140 its reverse (4140223144113), we get a palindrome (35284355348253).

The spelling of 31144132204140 in words is "thirty-one trillion, one hundred forty-four billion, one hundred thirty-two million, two hundred four thousand, one hundred forty".