20337020367091 has 2 divisors, whose sum is σ = 20337020367092. Its totient is φ = 20337020367090.

The previous prime is 20337020366987. The next prime is 20337020367127. The reversal of 20337020367091 is 19076302073302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20337020367091 - 2³¹ = 20334872883443 is a prime.

It is a super-2 number, since 2×20337020367091² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20337020365091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10168510183545 + 10168510183546.

It is an arithmetic number, because the mean of its divisors is an integer number (10168510183546).

Almost surely, 2^{20337020367091} is an apocalyptic number.

20337020367091 is a deficient number, since it is larger than the sum of its proper divisors (1).

20337020367091 is an equidigital number, since it uses as much as digits as its factorization.

20337020367091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 43.

The spelling of 20337020367091 in words is "twenty trillion, three hundred thirty-seven billion, twenty million, three hundred sixty-seven thousand, ninety-one".