1232133011 has 4 divisors (see below), whose sum is σ = 1232222112. Its totient is φ = 1232043912.

The previous prime is 1232132989. The next prime is 1232133013. The reversal of 1232133011 is 1103312321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1103312321 = 443 ⋅2490547.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1232133011 is a prime.

It is a super-2 number, since 2×1232133011² = 3036303513591852242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232133013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18875 + ... + 53108.

It is an arithmetic number, because the mean of its divisors is an integer number (308055528).

Almost surely, 2^1232133011 is an apocalyptic number.

1232133011 is a deficient number, since it is larger than the sum of its proper divisors (89101).

1232133011 is an equidigital number, since it uses as much as digits as its factorization.

1232133011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89100.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1232133011 is about 35101.7522497097. The cubic root of 1232133011 is about 1072.0602605331.

Adding to 1232133011 its reverse (1103312321), we get a palindrome (2335445332).

The spelling of 1232133011 in words is "one billion, two hundred thirty-two million, one hundred thirty-three thousand, eleven".