2001302131 has 4 divisors (see below), whose sum is σ = 2003211000. Its totient is φ = 1999393264.

The previous prime is 2001302117. The next prime is 2001302141. The reversal of 2001302131 is 1312031002.

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

It is a cyclic number.

It is not a de Polignac number, because 2001302131 - 2⁷ = 2001302003 is a prime.

It is a super-2 number, since 2×2001302131² = 8010420439090282322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001302141) 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, 952861 + ... + 954958.

It is an arithmetic number, because the mean of its divisors is an integer number (500802750).

Almost surely, 2^2001302131 is an apocalyptic number.

2001302131 is a deficient number, since it is larger than the sum of its proper divisors (1908869).

2001302131 is a wasteful number, since it uses less digits than its factorization.

2001302131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908868.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2001302131 is about 44735.9154483285. The cubic root of 2001302131 is about 1260.1944209521.

Adding to 2001302131 its reverse (1312031002), we get a palindrome (3313333133).

The spelling of 2001302131 in words is "two billion, one million, three hundred two thousand, one hundred thirty-one".