1002123000 has 96 divisors (see below), whose sum is σ = 3387206160. Its totient is φ = 267230400.

The previous prime is 1002122999. The next prime is 1002123037. The reversal of 1002123000 is 3212001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46674 + ... + 64673.

Almost surely, 2^1002123000 is an apocalyptic number.

1002123000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002123000 is an abundant number, since it is smaller than the sum of its proper divisors (2385083160).

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

1002123000 is a wasteful number, since it uses less digits than its factorization.

1002123000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111374 (or 111357 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1002123000 is about 31656.3263819414. The cubic root of 1002123000 is about 1000.7071664644.

Adding to 1002123000 its reverse (3212001), we get a palindrome (1005335001).

The spelling of 1002123000 in words is "one billion, two million, one hundred twenty-three thousand".