122040340423 has 4 divisors (see below), whose sum is σ = 125338728040. Its totient is φ = 118741952808.

The previous prime is 122040340399. The next prime is 122040340427. The reversal of 122040340423 is 324043040221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 122040340423 - 2⁵ = 122040340391 is a prime.

It is a super-3 number, since 3×122040340423³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122040340427) 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, 1649193753 + ... + 1649193826.

It is an arithmetic number, because the mean of its divisors is an integer number (31334682010).

Almost surely, 2^122040340423 is an apocalyptic number.

122040340423 is a deficient number, since it is larger than the sum of its proper divisors (3298387617).

122040340423 is an equidigital number, since it uses as much as digits as its factorization.

122040340423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3298387616.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 122040340423 its reverse (324043040221), we get a palindrome (446083380644).

The spelling of 122040340423 in words is "one hundred twenty-two billion, forty million, three hundred forty thousand, four hundred twenty-three".