20312541213 has 8 divisors (see below), whose sum is σ = 27090012000. Its totient is φ = 13538382288.

The previous prime is 20312541203. The next prime is 20312541217. The reversal of 20312541213 is 31214521302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20312541213 - 2⁹ = 20312540701 is a prime.

It is a super-2 number, since 2×20312541213² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312541217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 813618 + ... + 838211.

It is an arithmetic number, because the mean of its divisors is an integer number (3386251500).

Almost surely, 2^20312541213 is an apocalyptic number.

It is an amenable number.

20312541213 is a deficient number, since it is larger than the sum of its proper divisors (6777470787).

20312541213 is a wasteful number, since it uses less digits than its factorization.

20312541213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655931.

The product of its (nonzero) digits is 1440, while the sum is 24.

The spelling of 20312541213 in words is "twenty billion, three hundred twelve million, five hundred forty-one thousand, two hundred thirteen".