2123190700 has 36 divisors (see below), whose sum is σ = 4630519600. Its totient is φ = 845000640.

The previous prime is 2123190691. The next prime is 2123190703. The reversal of 2123190700 is 70913212.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2123190703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33447 + ... + 73246.

Almost surely, 2^2123190700 is an apocalyptic number.

2123190700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123190700 is an abundant number, since it is smaller than the sum of its proper divisors (2507328900).

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

2123190700 is a wasteful number, since it uses less digits than its factorization.

2123190700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106906 (or 106899 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 2123190700 is about 46078.0934935464. The cubic root of 2123190700 is about 1285.2758117400.

The spelling of 2123190700 in words is "two billion, one hundred twenty-three million, one hundred ninety thousand, seven hundred".