31422233112121 has 16 divisors (see below), whose sum is σ = 31887066096000. Its totient is φ = 30958026422400.

The previous prime is 31422233112077. The next prime is 31422233112299. The reversal of 31422233112121 is 12121133222413.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 31422233112121 - 2¹³ = 31422233103929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31422233112121.

It is not an unprimeable number, because it can be changed into a prime (31422233112521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 634140055 + ... + 634189603.

It is an arithmetic number, because the mean of its divisors is an integer number (1992941631000).

Almost surely, 2^{31422233112121} is an apocalyptic number.

It is an amenable number.

31422233112121 is a deficient number, since it is larger than the sum of its proper divisors (464832983879).

31422233112121 is a wasteful number, since it uses less digits than its factorization.

31422233112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55680.

The product of its digits is 3456, while the sum is 28.

Adding to 31422233112121 its reverse (12121133222413), we get a palindrome (43543366334534).

The spelling of 31422233112121 in words is "thirty-one trillion, four hundred twenty-two billion, two hundred thirty-three million, one hundred twelve thousand, one hundred twenty-one".