31142011442 has 16 divisors (see below), whose sum is σ = 49479558912. Its totient is φ = 14649518400.

The previous prime is 31142011441. The next prime is 31142011463. The reversal of 31142011442 is 24411024113.

It is not an unprimeable number, because it can be changed into a prime (31142011441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81434 + ... + 262517.

It is an arithmetic number, because the mean of its divisors is an integer number (3092472432).

Almost surely, 2^31142011442 is an apocalyptic number.

31142011442 is a deficient number, since it is larger than the sum of its proper divisors (18337547470).

31142011442 is a wasteful number, since it uses less digits than its factorization.

31142011442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346633.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 31142011442 its reverse (24411024113), we get a palindrome (55553035555).

The spelling of 31142011442 in words is "thirty-one billion, one hundred forty-two million, eleven thousand, four hundred forty-two".