122881253321 has 4 divisors (see below), whose sum is σ = 122882814852. Its totient is φ = 122879691792.

The previous prime is 122881253303. The next prime is 122881253351. The reversal of 122881253321 is 123352188221.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8758900921 + 114122352400 = 93589^2 + 337820^2 .

It is a cyclic number.

It is not a de Polignac number, because 122881253321 - 2²⁶ = 122814144457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122881253351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656090 + ... + 822323.

It is an arithmetic number, because the mean of its divisors is an integer number (30720703713).

Almost surely, 2^122881253321 is an apocalyptic number.

It is an amenable number.

122881253321 is a deficient number, since it is larger than the sum of its proper divisors (1561531).

122881253321 is an equidigital number, since it uses as much as digits as its factorization.

122881253321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561530.

The product of its digits is 46080, while the sum is 38.

The spelling of 122881253321 in words is "one hundred twenty-two billion, eight hundred eighty-one million, two hundred fifty-three thousand, three hundred twenty-one".