1232861811 has 32 divisors (see below), whose sum is σ = 1769195520. Its totient is φ = 760920576.

The previous prime is 1232861803. The next prime is 1232861827. The reversal of 1232861811 is 1181682321.

It is not a de Polignac number, because 1232861811 - 2³ = 1232861803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1232861881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 856030 + ... + 857468.

It is an arithmetic number, because the mean of its divisors is an integer number (55287360).

Almost surely, 2^1232861811 is an apocalyptic number.

1232861811 is a deficient number, since it is larger than the sum of its proper divisors (536333709).

1232861811 is a wasteful number, since it uses less digits than its factorization.

1232861811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723.

The product of its digits is 4608, while the sum is 33.

The square root of 1232861811 is about 35112.1319631833. The cubic root of 1232861811 is about 1072.2715914833.

The spelling of 1232861811 in words is "one billion, two hundred thirty-two million, eight hundred sixty-one thousand, eight hundred eleven".