123310011000 has 384 divisors, whose sum is σ = 434358550080. Its totient is φ = 29082240000.

The previous prime is 123310010983. The next prime is 123310011017. The reversal of 123310011000 is 110013321.

It is an interprime number because it is at equal distance from previous prime (123310010983) and next prime (123310011017).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13426410 + ... + 13435590.

Almost surely, 2^123310011000 is an apocalyptic number.

123310011000 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 123310011000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217179275040).

123310011000 is an abundant number, since it is smaller than the sum of its proper divisors (311048539080).

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

123310011000 is a wasteful number, since it uses less digits than its factorization.

123310011000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9264 (or 9239 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 123310011000 its reverse (110013321), we get a palindrome (123420024321).

The spelling of 123310011000 in words is "one hundred twenty-three billion, three hundred ten million, eleven thousand".