123402022 has 8 divisors (see below), whose sum is σ = 185526000. Its totient is φ = 61560024.

The previous prime is 123402011. The next prime is 123402023. The reversal of 123402022 is 220204321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 123401987 and 123402005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123402023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69397 + ... + 71152.

It is an arithmetic number, because the mean of its divisors is an integer number (23190750).

Almost surely, 2^123402022 is an apocalyptic number.

123402022 is a deficient number, since it is larger than the sum of its proper divisors (62123978).

123402022 is a wasteful number, since it uses less digits than its factorization.

123402022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140990.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 123402022 is about 11108.6462721612. The cubic root of 123402022 is about 497.8602183992.

Adding to 123402022 its reverse (220204321), we get a palindrome (343606343).

The spelling of 123402022 in words is "one hundred twenty-three million, four hundred two thousand, twenty-two".