123011322000 has 320 divisors, whose sum is σ = 454582761984. Its totient is φ = 28033843200.

The previous prime is 123011321987. The next prime is 123011322047. The reversal of 123011322000 is 223110321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14821852 + ... + 14830148.

Almost surely, 2^123011322000 is an apocalyptic number.

123011322000 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 123011322000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227291380992).

123011322000 is an abundant number, since it is smaller than the sum of its proper divisors (331571439984).

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

123011322000 is a wasteful number, since it uses less digits than its factorization.

123011322000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8683 (or 8667 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 123011322000 its reverse (223110321), we get a palindrome (123234432321).

The spelling of 123011322000 in words is "one hundred twenty-three billion, eleven million, three hundred twenty-two thousand".