31420040212122 has 128 divisors (see below), whose sum is σ = 65606846054400. Its totient is φ = 10020682694400.

The previous prime is 31420040212109. The next prime is 31420040212189. The reversal of 31420040212122 is 22121204002413.

It is a junction number, because it is equal to n+sod(n) for n = 31420040212092 and 31420040212101.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7876668904 + ... + 7876672892.

It is an arithmetic number, because the mean of its divisors is an integer number (512553484800).

Almost surely, 2^{31420040212122} is an apocalyptic number.

31420040212122 is an abundant number, since it is smaller than the sum of its proper divisors (34186805842278).

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

31420040212122 is a wasteful number, since it uses less digits than its factorization.

31420040212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5492.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31420040212122 its reverse (22121204002413), we get a palindrome (53541244214535).

The spelling of 31420040212122 in words is "thirty-one trillion, four hundred twenty billion, forty million, two hundred twelve thousand, one hundred twenty-two".