102112012693 has 2 divisors, whose sum is σ = 102112012694. Its totient is φ = 102112012692.

The previous prime is 102112012687. The next prime is 102112012729. The reversal of 102112012693 is 396210211201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81920171089 + 20191841604 = 286217^2 + 142098^2 .

It is a cyclic number.

It is not a de Polignac number, because 102112012693 - 2³³ = 93522078101 is a prime.

It is a super-2 number, since 2×102112012693² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103112012693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51056006346 + 51056006347.

It is an arithmetic number, because the mean of its divisors is an integer number (51056006347).

Almost surely, 2^102112012693 is an apocalyptic number.

It is an amenable number.

102112012693 is a deficient number, since it is larger than the sum of its proper divisors (1).

102112012693 is an equidigital number, since it uses as much as digits as its factorization.

102112012693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

Adding to 102112012693 its reverse (396210211201), we get a palindrome (498322223894).

The spelling of 102112012693 in words is "one hundred two billion, one hundred twelve million, twelve thousand, six hundred ninety-three".