402123413422 has 4 divisors (see below), whose sum is σ = 603185120136. Its totient is φ = 201061706710.

The previous prime is 402123413411. The next prime is 402123413423. The reversal of 402123413422 is 224314321204.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402123413423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100530853354 + ... + 100530853357.

It is an arithmetic number, because the mean of its divisors is an integer number (150796280034).

Almost surely, 2^402123413422 is an apocalyptic number.

402123413422 is a deficient number, since it is larger than the sum of its proper divisors (201061706714).

402123413422 is a wasteful number, since it uses less digits than its factorization.

402123413422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201061706713.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 402123413422 its reverse (224314321204), we get a palindrome (626437734626).

The spelling of 402123413422 in words is "four hundred two billion, one hundred twenty-three million, four hundred thirteen thousand, four hundred twenty-two".