31432340142022 has 4 divisors (see below), whose sum is σ = 47148510213036. Its totient is φ = 15716170071010.

The previous prime is 31432340141987. The next prime is 31432340142023. The reversal of 31432340142022 is 22024104323413.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31432340142023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7858085035504 + ... + 7858085035507.

It is an arithmetic number, because the mean of its divisors is an integer number (11787127553259).

Almost surely, 2^{31432340142022} is an apocalyptic number.

31432340142022 is a deficient number, since it is larger than the sum of its proper divisors (15716170071014).

31432340142022 is a wasteful number, since it uses less digits than its factorization.

31432340142022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15716170071013.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 31432340142022 its reverse (22024104323413), we get a palindrome (53456444465435).

The spelling of 31432340142022 in words is "thirty-one trillion, four hundred thirty-two billion, three hundred forty million, one hundred forty-two thousand, twenty-two".