2123202040 has 16 divisors (see below), whose sum is σ = 4777204680. Its totient is φ = 849280800.

The previous prime is 2123202023. The next prime is 2123202049. The reversal of 2123202040 is 402023212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123202049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26539986 + ... + 26540065.

Almost surely, 2^2123202040 is an apocalyptic number.

2123202040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123202040 is an abundant number, since it is smaller than the sum of its proper divisors (2654002640).

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

2123202040 is a wasteful number, since it uses less digits than its factorization.

2123202040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53080062 (or 53080058 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2123202040 is about 46078.2165453482. The cubic root of 2123202040 is about 1285.2780999630.

Adding to 2123202040 its reverse (402023212), we get a palindrome (2525225252).

The spelling of 2123202040 in words is "two billion, one hundred twenty-three million, two hundred two thousand, forty".