2123620002 has 48 divisors (see below), whose sum is σ = 5261293440. Its totient is φ = 606424896.

The previous prime is 2123619977. The next prime is 2123620019. The reversal of 2123620002 is 2000263212.

2123620002 is a `hidden beast` number, since 21 + 23 + 620 + 0 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 in 23 ways as a sum of consecutive naturals, for example, 332374 + ... + 338702.

It is an arithmetic number, because the mean of its divisors is an integer number (109610280).

Almost surely, 2^2123620002 is an apocalyptic number.

2123620002 is an abundant number, since it is smaller than the sum of its proper divisors (3137673438).

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

2123620002 is a wasteful number, since it uses less digits than its factorization.

2123620002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9007 (or 9004 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2123620002 is about 46082.7516756541. The cubic root of 2123620002 is about 1285.3624320472.

Adding to 2123620002 its reverse (2000263212), we get a palindrome (4123883214).

The spelling of 2123620002 in words is "two billion, one hundred twenty-three million, six hundred twenty thousand, two".