2001402113 has 4 divisors (see below), whose sum is σ = 2055494100. Its totient is φ = 1947310128.

The previous prime is 2001402097. The next prime is 2001402127. The reversal of 2001402113 is 3112041002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1254363889 + 747038224 = 35417^2 + 27332^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001402113 - 2⁴ = 2001402097 is a prime.

It is a super-2 number, since 2×2001402113² = 8011220835841729538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001422113) 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, 27045938 + ... + 27046011.

It is an arithmetic number, because the mean of its divisors is an integer number (513873525).

Almost surely, 2^2001402113 is an apocalyptic number.

It is an amenable number.

2001402113 is a deficient number, since it is larger than the sum of its proper divisors (54091987).

2001402113 is an equidigital number, since it uses as much as digits as its factorization.

2001402113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54091986.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2001402113 is about 44737.0329034012. The cubic root of 2001402113 is about 1260.2154063992.

Adding to 2001402113 its reverse (3112041002), we get a palindrome (5113443115).

The spelling of 2001402113 in words is "two billion, one million, four hundred two thousand, one hundred thirteen".