2001501213 has 16 divisors (see below), whose sum is σ = 2678970816. Its totient is φ = 1329194880.

The previous prime is 2001501167. The next prime is 2001501247. The reversal of 2001501213 is 3121051002.

It is not a de Polignac number, because 2001501213 - 2⁹ = 2001500701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001501192 and 2001501201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001501283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1144806 + ... + 1146552.

It is an arithmetic number, because the mean of its divisors is an integer number (167435676).

Almost surely, 2^2001501213 is an apocalyptic number.

It is an amenable number.

2001501213 is a deficient number, since it is larger than the sum of its proper divisors (677469603).

2001501213 is a wasteful number, since it uses less digits than its factorization.

2001501213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 2001501213 is about 44738.1404732025. The cubic root of 2001501213 is about 1260.2362060318.

Adding to 2001501213 its reverse (3121051002), we get a palindrome (5122552215).

The spelling of 2001501213 in words is "two billion, one million, five hundred one thousand, two hundred thirteen".