31503245132 has 6 divisors (see below), whose sum is σ = 55130678988. Its totient is φ = 15751622564.

The previous prime is 31503245129. The next prime is 31503245143. The reversal of 31503245132 is 23154230513.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31503245095 and 31503245104.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3937905638 + ... + 3937905645.

It is an arithmetic number, because the mean of its divisors is an integer number (9188446498).

Almost surely, 2^31503245132 is an apocalyptic number.

It is an amenable number.

31503245132 is a deficient number, since it is larger than the sum of its proper divisors (23627433856).

31503245132 is a wasteful number, since it uses less digits than its factorization.

31503245132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7875811287 (or 7875811285 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 31503245132 its reverse (23154230513), we get a palindrome (54657475645).

The spelling of 31503245132 in words is "thirty-one billion, five hundred three million, two hundred forty-five thousand, one hundred thirty-two".