2001320402 has 16 divisors (see below), whose sum is σ = 3042023040. Its totient is φ = 987343632.

The previous prime is 2001320389. The next prime is 2001320437. The reversal of 2001320402 is 2040231002.

It is a super-2 number, since 2×2001320402² = 8010566702922883208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130343 + ... + 144885.

It is an arithmetic number, because the mean of its divisors is an integer number (190126440).

Almost surely, 2^2001320402 is an apocalyptic number.

2001320402 is a deficient number, since it is larger than the sum of its proper divisors (1040702638).

2001320402 is a wasteful number, since it uses less digits than its factorization.

2001320402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15457.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2001320402 is about 44736.1196573865. The cubic root of 2001320402 is about 1260.1982559456.

Adding to 2001320402 its reverse (2040231002), we get a palindrome (4041551404).

The spelling of 2001320402 in words is "two billion, one million, three hundred twenty thousand, four hundred two".