31142304552 has 16 divisors (see below), whose sum is σ = 77855761440. Its totient is φ = 10380768176.

The previous prime is 31142304527. The next prime is 31142304553. The reversal of 31142304552 is 25540324113.

It is not an unprimeable number, because it can be changed into a prime (31142304553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648797988 + ... + 648798035.

It is an arithmetic number, because the mean of its divisors is an integer number (4865985090).

Almost surely, 2^31142304552 is an apocalyptic number.

It is an amenable number.

31142304552 is an abundant number, since it is smaller than the sum of its proper divisors (46713456888).

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

31142304552 is a wasteful number, since it uses less digits than its factorization.

31142304552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297596032 (or 1297596028 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 31142304552 its reverse (25540324113), we get a palindrome (56682628665).

The spelling of 31142304552 in words is "thirty-one billion, one hundred forty-two million, three hundred four thousand, five hundred fifty-two".