402034122123 has 4 divisors (see below), whose sum is σ = 536045496168. Its totient is φ = 268022748080.

The previous prime is 402034122101. The next prime is 402034122157. The reversal of 402034122123 is 321221430204.

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 402034122123 - 2²⁴ = 402017344907 is a prime.

It is a super-2 number, since 2×402034122123² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402034122093 and 402034122102.

It is not an unprimeable number, because it can be changed into a prime (402034122223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67005687018 + ... + 67005687023.

It is an arithmetic number, because the mean of its divisors is an integer number (134011374042).

Almost surely, 2^402034122123 is an apocalyptic number.

402034122123 is a deficient number, since it is larger than the sum of its proper divisors (134011374045).

402034122123 is a wasteful number, since it uses less digits than its factorization.

402034122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134011374044.

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

Adding to 402034122123 its reverse (321221430204), we get a palindrome (723255552327).

The spelling of 402034122123 in words is "four hundred two billion, thirty-four million, one hundred twenty-two thousand, one hundred twenty-three".