2001323750 has 20 divisors (see below), whose sum is σ = 3751283580. Its totient is φ = 800529000.

The previous prime is 2001323749. The next prime is 2001323767. The reversal of 2001323750 is 573231002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 799280 + ... + 801779.

It is an arithmetic number, because the mean of its divisors is an integer number (187564179).

Almost surely, 2^2001323750 is an apocalyptic number.

2001323750 is a deficient number, since it is larger than the sum of its proper divisors (1749959830).

2001323750 is an equidigital number, since it uses as much as digits as its factorization.

2001323750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601081 (or 1601066 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 2001323750 is about 44736.1570767986. The cubic root of 2001323750 is about 1260.1989586719.

Adding to 2001323750 its reverse (573231002), we get a palindrome (2574554752).

The spelling of 2001323750 in words is "two billion, one million, three hundred twenty-three thousand, seven hundred fifty".