31425140022 has 32 divisors (see below), whose sum is σ = 68439513600. Its totient is φ = 9581529888.

The previous prime is 31425140017. The next prime is 31425140023. The reversal of 31425140022 is 22004152413.

It is a junction number, because it is equal to n+sod(n) for n = 31425139974 and 31425140001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31425140023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4749438 + ... + 4756049.

It is an arithmetic number, because the mean of its divisors is an integer number (2138734800).

Almost surely, 2^31425140022 is an apocalyptic number.

31425140022 is an abundant number, since it is smaller than the sum of its proper divisors (37014373578).

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

31425140022 is a wasteful number, since it uses less digits than its factorization.

31425140022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9505540.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 31425140022 its reverse (22004152413), we get a palindrome (53429292435).

The spelling of 31425140022 in words is "thirty-one billion, four hundred twenty-five million, one hundred forty thousand, twenty-two".