20363135131 has 2 divisors, whose sum is σ = 20363135132. Its totient is φ = 20363135130.

The previous prime is 20363135101. The next prime is 20363135159. The reversal of 20363135131 is 13153136302.

It is an a-pointer prime, because the next prime (20363135159) can be obtained adding 20363135131 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20363135131 - 2¹⁵ = 20363102363 is a prime.

It is a super-2 number, since 2×20363135131² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20363135131.

It is not a weakly prime, because it can be changed into another prime (20363135101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10181567565 + 10181567566.

It is an arithmetic number, because the mean of its divisors is an integer number (10181567566).

Almost surely, 2^20363135131 is an apocalyptic number.

20363135131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20363135131 is an equidigital number, since it uses as much as digits as its factorization.

20363135131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 28.

The spelling of 20363135131 in words is "twenty billion, three hundred sixty-three million, one hundred thirty-five thousand, one hundred thirty-one".