31503142412 has 48 divisors (see below), whose sum is σ = 65983411200. Its totient is φ = 12867636672.

The previous prime is 31503142399. The next prime is 31503142483. The reversal of 31503142412 is 21424130513.

It is a happy 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, 90089 + ... + 266687.

It is an arithmetic number, because the mean of its divisors is an integer number (1374654400).

Almost surely, 2^31503142412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31503142412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32991705600).

31503142412 is an abundant number, since it is smaller than the sum of its proper divisors (34480268788).

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

31503142412 is a wasteful number, since it uses less digits than its factorization.

31503142412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176910 (or 176908 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 31503142412 its reverse (21424130513), we get a palindrome (52927272925).

The spelling of 31503142412 in words is "thirty-one billion, five hundred three million, one hundred forty-two thousand, four hundred twelve".