31144203032 has 64 divisors (see below), whose sum is σ = 62040384000. Its totient is φ = 14625287424.

The previous prime is 31144203023. The next prime is 31144203089. The reversal of 31144203032 is 23030244113.

It is a super-2 number, since 2×31144203032² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 31144202989 and 31144203007.

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, 17466413 + ... + 17468195.

It is an arithmetic number, because the mean of its divisors is an integer number (969381000).

Almost surely, 2^31144203032 is an apocalyptic number.

It is an amenable number.

31144203032 is a deficient number, since it is larger than the sum of its proper divisors (30896180968).

31144203032 is a wasteful number, since it uses less digits than its factorization.

31144203032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480 (or 3476 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 31144203032 its reverse (23030244113), we get a palindrome (54174447145).

The spelling of 31144203032 in words is "thirty-one billion, one hundred forty-four million, two hundred three thousand, thirty-two".