31032223442 has 32 divisors (see below), whose sum is σ = 53497221120. Its totient is φ = 13352011920.

The previous prime is 31032223381. The next prime is 31032223447. The reversal of 31032223442 is 24432223013.

It is not an unprimeable number, because it can be changed into a prime (31032223447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480863 + ... + 541565.

It is an arithmetic number, because the mean of its divisors is an integer number (1671788160).

Almost surely, 2^31032223442 is an apocalyptic number.

31032223442 is a deficient number, since it is larger than the sum of its proper divisors (22464997678).

31032223442 is a wasteful number, since it uses less digits than its factorization.

31032223442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61958.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 31032223442 its reverse (24432223013), we get a palindrome (55464446455).

The spelling of 31032223442 in words is "thirty-one billion, thirty-two million, two hundred twenty-three thousand, four hundred forty-two".