123402000 has 160 divisors (see below), whose sum is σ = 403438464. Its totient is φ = 32448000.

The previous prime is 123401977. The next prime is 123402011. The reversal of 123402000 is 204321.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 785922 + ... + 786078.

Almost surely, 2^123402000 is an apocalyptic number.

123402000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123402000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201719232).

123402000 is an abundant number, since it is smaller than the sum of its proper divisors (280036464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123402000 is a wasteful number, since it uses less digits than its factorization.

123402000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 123402000 is about 11108.6452819414. The cubic root of 123402000 is about 497.8601888132.

Adding to 123402000 its reverse (204321), we get a palindrome (123606321).

The spelling of 123402000 in words is "one hundred twenty-three million, four hundred two thousand".