123011002 has 4 divisors (see below), whose sum is σ = 184516506. Its totient is φ = 61505500.

The previous prime is 123010999. The next prime is 123011017. The reversal of 123011002 is 200110321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200110321 = 97 ⋅2062993.

It can be written as a sum of positive squares in only one way, i.e., 108180801 + 14830201 = 10401^2 + 3851^2 .

It is a super-2 number, since 2×123011002² = 30263413226088008, 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 123011002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30752749 + ... + 30752752.

Almost surely, 2^123011002 is an apocalyptic number.

123011002 is a deficient number, since it is larger than the sum of its proper divisors (61505504).

123011002 is an equidigital number, since it uses as much as digits as its factorization.

123011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61505503.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 123011002 is about 11091.0325037843. The cubic root of 123011002 is about 497.3338108074. Note that the first 3 decimals are identical.

Adding to 123011002 its reverse (200110321), we get a palindrome (323121323).

The spelling of 123011002 in words is "one hundred twenty-three million, eleven thousand, two".