31142431323224 has 16 divisors (see below), whose sum is σ = 62883755556720. Its totient is φ = 14373429841440.

The previous prime is 31142431323193. The next prime is 31142431323229. The reversal of 31142431323224 is 42232313424113.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31142431323229) 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, 149723227412 + ... + 149723227619.

It is an arithmetic number, because the mean of its divisors is an integer number (3930234722295).

Almost surely, 2^{31142431323224} is an apocalyptic number.

It is an amenable number.

31142431323224 is an abundant number, since it is smaller than the sum of its proper divisors (31741324233496).

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

31142431323224 is a wasteful number, since it uses less digits than its factorization.

31142431323224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299446455050 (or 299446455046 counting only the distinct ones).

The product of its digits is 82944, while the sum is 35.

Adding to 31142431323224 its reverse (42232313424113), we get a palindrome (73374744747337).

The spelling of 31142431323224 in words is "thirty-one trillion, one hundred forty-two billion, four hundred thirty-one million, three hundred twenty-three thousand, two hundred twenty-four".