1868232011 has 2 divisors, whose sum is σ = 1868232012. Its totient is φ = 1868232010.

The previous prime is 1868231951. The next prime is 1868232049. The reversal of 1868232011 is 1102328681.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1868232011 - 2²⁶ = 1801123147 is a prime.

It is not a weakly prime, because it can be changed into another prime (1868232071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 934116005 + 934116006.

It is an arithmetic number, because the mean of its divisors is an integer number (934116006).

Almost surely, 2^1868232011 is an apocalyptic number.

1868232011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1868232011 is an equidigital number, since it uses as much as digits as its factorization.

1868232011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1868232011 is about 43223.0495337846. The cubic root of 1868232011 is about 1231.6205776545.

The spelling of 1868232011 in words is "one billion, eight hundred sixty-eight million, two hundred thirty-two thousand, eleven".