123011331000102 has 32 divisors (see below), whose sum is σ = 276429957314400. Its totient is φ = 40543060402944.

The previous prime is 123011331000101. The next prime is 123011331000163. The reversal of 123011331000102 is 201000133110321.

123011331000102 is a `hidden beast` number, since 1 + 230 + 1 + 1 + 331 + 0 + 0 + 0 + 102 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123011331000101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12797678403 + ... + 12797688014.

It is an arithmetic number, because the mean of its divisors is an integer number (8638436166075).

Almost surely, 2^{123011331000102} is an apocalyptic number.

123011331000102 is an abundant number, since it is smaller than the sum of its proper divisors (153418626314298).

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

123011331000102 is a wasteful number, since it uses less digits than its factorization.

123011331000102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25595366517 (or 25595366511 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 123011331000102 its reverse (201000133110321), we get a palindrome (324011464110423).

The spelling of 123011331000102 in words is "one hundred twenty-three trillion, eleven billion, three hundred thirty-one million, one hundred two", and thus it is an aban number.