123123161770 has 64 divisors (see below), whose sum is σ = 255311481600. Its totient is φ = 41875840512.

The previous prime is 123123161767. The next prime is 123123161779. The reversal of 123123161770 is 77161321321.

It is not an unprimeable number, because it can be changed into a prime (123123161779) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16750056 + ... + 16757404.

It is an arithmetic number, because the mean of its divisors is an integer number (3989241900).

Almost surely, 2^123123161770 is an apocalyptic number.

123123161770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123123161770 is an abundant number, since it is smaller than the sum of its proper divisors (132188319830).

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

123123161770 is a wasteful number, since it uses less digits than its factorization.

123123161770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9247.

The product of its (nonzero) digits is 10584, while the sum is 34.

The spelling of 123123161770 in words is "one hundred twenty-three billion, one hundred twenty-three million, one hundred sixty-one thousand, seven hundred seventy".