123422402 has 4 divisors (see below), whose sum is σ = 185133606. Its totient is φ = 61711200.

The previous prime is 123422401. The next prime is 123422407. The reversal of 123422402 is 204224321.

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

It can be written as a sum of positive squares in only one way, i.e., 107350321 + 16072081 = 10361^2 + 4009^2 .

It is not an unprimeable number, because it can be changed into a prime (123422401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30855599 + ... + 30855602.

Almost surely, 2^123422402 is an apocalyptic number.

123422402 is a deficient number, since it is larger than the sum of its proper divisors (61711204).

123422402 is an equidigital number, since it uses as much as digits as its factorization.

123422402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61711203.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 123422402 is about 11109.5635377813. The cubic root of 123422402 is about 497.8876243054.

Adding to 123422402 its reverse (204224321), we get a palindrome (327646723).

The spelling of 123422402 in words is "one hundred twenty-three million, four hundred twenty-two thousand, four hundred two".