123023121002 has 16 divisors (see below), whose sum is σ = 189220458240. Its totient is φ = 59955608832.

The previous prime is 123023120993. The next prime is 123023121017. The reversal of 123023121002 is 200121320321.

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, 1452023 + ... + 1534410.

It is an arithmetic number, because the mean of its divisors is an integer number (11826278640).

Almost surely, 2^123023121002 is an apocalyptic number.

123023121002 is a deficient number, since it is larger than the sum of its proper divisors (66197337238).

123023121002 is a wasteful number, since it uses less digits than its factorization.

123023121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2986957.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 123023121002 its reverse (200121320321), we get a palindrome (323144441323).

The spelling of 123023121002 in words is "one hundred twenty-three billion, twenty-three million, one hundred twenty-one thousand, two".