122340021243 has 16 divisors (see below), whose sum is σ = 178278074112. Its totient is φ = 74008404000.

The previous prime is 122340021233. The next prime is 122340021247. The reversal of 122340021243 is 342120043221.

It is a happy number.

It is not a de Polignac number, because 122340021243 - 2²⁸ = 122071585787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122340021247) 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, 3408463 + ... + 3444168.

It is an arithmetic number, because the mean of its divisors is an integer number (11142379632).

Almost surely, 2^122340021243 is an apocalyptic number.

122340021243 is a deficient number, since it is larger than the sum of its proper divisors (55938052869).

122340021243 is a wasteful number, since it uses less digits than its factorization.

122340021243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6853186.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 122340021243 its reverse (342120043221), we get a palindrome (464460064464).

The spelling of 122340021243 in words is "one hundred twenty-two billion, three hundred forty million, twenty-one thousand, two hundred forty-three".