123150103040 has 80 divisors (see below), whose sum is σ = 295463089152. Its totient is φ = 49228099584.

The previous prime is 123150103001. The next prime is 123150103057. The reversal of 123150103040 is 40301051321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4150337 + ... + 4179903.

Almost surely, 2^123150103040 is an apocalyptic number.

123150103040 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 123150103040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147731544576).

123150103040 is an abundant number, since it is smaller than the sum of its proper divisors (172312986112).

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

123150103040 is an equidigital number, since it uses as much as digits as its factorization.

123150103040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31217 (or 31201 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 123150103040 its reverse (40301051321), we get a palindrome (163451154361).

The spelling of 123150103040 in words is "one hundred twenty-three billion, one hundred fifty million, one hundred three thousand, forty".