31253140244 has 24 divisors (see below), whose sum is σ = 55051920000. Its totient is φ = 15524261280.

The previous prime is 31253140211. The next prime is 31253140277. The reversal of 31253140244 is 44204135213.

It is an interprime number because it is at equal distance from previous prime (31253140211) and next prime (31253140277).

It is a super-2 number, since 2×31253140244² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496457 + ... + 555855.

It is an arithmetic number, because the mean of its divisors is an integer number (2293830000).

Almost surely, 2^31253140244 is an apocalyptic number.

It is an amenable number.

31253140244 is a deficient number, since it is larger than the sum of its proper divisors (23798779756).

31253140244 is a wasteful number, since it uses less digits than its factorization.

31253140244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60263 (or 60261 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 31253140244 its reverse (44204135213), we get a palindrome (75457275457).

The spelling of 31253140244 in words is "thirty-one billion, two hundred fifty-three million, one hundred forty thousand, two hundred forty-four".