31302122142 has 16 divisors (see below), whose sum is σ = 62734947840. Its totient is φ = 10412256792.

The previous prime is 31302122141. The next prime is 31302122143. The reversal of 31302122142 is 24122120313.

It is an interprime number because it is at equal distance from previous prime (31302122141) and next prime (31302122143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31302122141) 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, 5442868 + ... + 5448615.

It is an arithmetic number, because the mean of its divisors is an integer number (3920934240).

Almost surely, 2^31302122142 is an apocalyptic number.

31302122142 is an abundant number, since it is smaller than the sum of its proper divisors (31432825698).

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

31302122142 is a wasteful number, since it uses less digits than its factorization.

31302122142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10891967.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31302122142 its reverse (24122120313), we get a palindrome (55424242455).

The spelling of 31302122142 in words is "thirty-one billion, three hundred two million, one hundred twenty-two thousand, one hundred forty-two".