2091023000 has 64 divisors (see below), whose sum is σ = 5337839520. Its totient is φ = 760368000.

The previous prime is 2091022993. The next prime is 2091023057. The reversal of 2091023000 is 3201902.

It is a self number, because there is not a number n which added to its sum of digits gives 2091023000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84047 + ... + 106046.

Almost surely, 2^2091023000 is an apocalyptic number.

2091023000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2091023000 is an abundant number, since it is smaller than the sum of its proper divisors (3246816520).

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

2091023000 is a wasteful number, since it uses less digits than its factorization.

2091023000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190125 (or 190111 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2091023000 is about 45727.7049500628. The cubic root of 2091023000 is about 1278.7518350317.

Adding to 2091023000 its reverse (3201902), we get a palindrome (2094224902).

The spelling of 2091023000 in words is "two billion, ninety-one million, twenty-three thousand".