20315101432213 has 16 divisors (see below), whose sum is σ = 23237201466880. Its totient is φ = 17397992061936.

The previous prime is 20315101432193. The next prime is 20315101432267. The reversal of 20315101432213 is 31223410151302.

It is a cyclic number.

It is not a de Polignac number, because 20315101432213 - 2⁹ = 20315101431701 is a prime.

It is a super-2 number, since 2×20315101432213² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20315101462213) 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, 49345606 + ... + 49755592.

It is an arithmetic number, because the mean of its divisors is an integer number (1452325091680).

Almost surely, 2^{20315101432213} is an apocalyptic number.

It is an amenable number.

20315101432213 is a deficient number, since it is larger than the sum of its proper divisors (2922100034667).

20315101432213 is a wasteful number, since it uses less digits than its factorization.

20315101432213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416056.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 20315101432213 its reverse (31223410151302), we get a palindrome (51538511583515).

The spelling of 20315101432213 in words is "twenty trillion, three hundred fifteen billion, one hundred one million, four hundred thirty-two thousand, two hundred thirteen".