40122001123 has 4 divisors (see below), whose sum is σ = 40158377568. Its totient is φ = 40085624680.

The previous prime is 40122001109. The next prime is 40122001181. The reversal of 40122001123 is 32110022104.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40122001123 is a prime.

It is a super-2 number, since 2×40122001123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40122001097 and 40122001106.

It is not an unprimeable number, because it can be changed into a prime (40122001823) 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, 18186568 + ... + 18188773.

It is an arithmetic number, because the mean of its divisors is an integer number (10039594392).

Almost surely, 2^40122001123 is an apocalyptic number.

40122001123 is a deficient number, since it is larger than the sum of its proper divisors (36376445).

40122001123 is a wasteful number, since it uses less digits than its factorization.

40122001123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36376444.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 40122001123 its reverse (32110022104), we get a palindrome (72232023227).

The spelling of 40122001123 in words is "forty billion, one hundred twenty-two million, one thousand, one hundred twenty-three".