20163102031 has 2 divisors, whose sum is σ = 20163102032. Its totient is φ = 20163102030.

The previous prime is 20163102023. The next prime is 20163102061. The reversal of 20163102031 is 13020136102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20163102031 - 2³ = 20163102023 is a prime.

It is a super-2 number, since 2×20163102031² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20163102061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10081551015 + 10081551016.

It is an arithmetic number, because the mean of its divisors is an integer number (10081551016).

Almost surely, 2^20163102031 is an apocalyptic number.

20163102031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20163102031 is an equidigital number, since it uses as much as digits as its factorization.

20163102031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20163102031 its reverse (13020136102), we get a palindrome (33183238133).

The spelling of 20163102031 in words is "twenty billion, one hundred sixty-three million, one hundred two thousand, thirty-one".