123013770 has 32 divisors (see below), whose sum is σ = 322073280. Its totient is φ = 29821440.

The previous prime is 123013763. The next prime is 123013777. The reversal of 123013770 is 77310321.

It is an interprime number because it is at equal distance from previous prime (123013763) and next prime (123013777).

It is a super-2 number, since 2×123013770² = 30264775219225800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123013770.

It is not an unprimeable number, because it can be changed into a prime (123013777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186055 + ... + 186714.

It is an arithmetic number, because the mean of its divisors is an integer number (10064790).

Almost surely, 2^123013770 is an apocalyptic number.

123013770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123013770 is an abundant number, since it is smaller than the sum of its proper divisors (199059510).

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

123013770 is a wasteful number, since it uses less digits than its factorization.

123013770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372790.

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 123013770 is about 11091.1572885790. The cubic root of 123013770 is about 497.3375411232.

The spelling of 123013770 in words is "one hundred twenty-three million, thirteen thousand, seven hundred seventy".