111643263203 has 2 divisors, whose sum is σ = 111643263204. Its totient is φ = 111643263202.

The previous prime is 111643263131. The next prime is 111643263211. The reversal of 111643263203 is 302362346111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111643263203 - 2²⁴ = 111626485987 is a prime.

It is a super-2 number, since 2×111643263203² (a number of 23 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 111643263203.

It is not a weakly prime, because it can be changed into another prime (111643263233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55821631601 + 55821631602.

It is an arithmetic number, because the mean of its divisors is an integer number (55821631602).

Almost surely, 2^111643263203 is an apocalyptic number.

111643263203 is a deficient number, since it is larger than the sum of its proper divisors (1).

111643263203 is an equidigital number, since it uses as much as digits as its factorization.

111643263203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 111643263203 in words is "one hundred eleven billion, six hundred forty-three million, two hundred sixty-three thousand, two hundred three".