2123180452 has 12 divisors (see below), whose sum is σ = 3835422976. Its totient is φ = 1027345320.

The previous prime is 2123180443. The next prime is 2123180467. The reversal of 2123180452 is 2540813212.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2123180452.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8561088 + ... + 8561335.

Almost surely, 2^2123180452 is an apocalyptic number.

It is an amenable number.

2123180452 is a deficient number, since it is larger than the sum of its proper divisors (1712242524).

2123180452 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 2123180452 = (5428122031)₉.

2123180452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17122458 (or 17122456 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 2123180452 is about 46077.9822908946. The cubic root of 2123180452 is about 1285.2737438573.

Adding to 2123180452 its reverse (2540813212), we get a palindrome (4663993664).

The spelling of 2123180452 in words is "two billion, one hundred twenty-three million, one hundred eighty thousand, four hundred fifty-two".