31144321244 has 48 divisors (see below), whose sum is σ = 58204204800. Its totient is φ = 14555220480.

The previous prime is 31144321199. The next prime is 31144321289. The reversal of 31144321244 is 44212344113.

It is an interprime number because it is at equal distance from previous prime (31144321199) and next prime (31144321289).

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, 603782 + ... + 653330.

It is an arithmetic number, because the mean of its divisors is an integer number (1212587600).

Almost surely, 2^31144321244 is an apocalyptic number.

It is an amenable number.

31144321244 is a deficient number, since it is larger than the sum of its proper divisors (27059883556).

31144321244 is a wasteful number, since it uses less digits than its factorization.

31144321244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49758 (or 49756 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

Adding to 31144321244 its reverse (44212344113), we get a palindrome (75356665357).

The spelling of 31144321244 in words is "thirty-one billion, one hundred forty-four million, three hundred twenty-one thousand, two hundred forty-four".