1200133011 has 32 divisors (see below), whose sum is σ = 2024828928. Its totient is φ = 614132640.

The previous prime is 1200133001. The next prime is 1200133019. The reversal of 1200133011 is 1103310021.

It is not a de Polignac number, because 1200133011 - 2⁹ = 1200132499 is a prime.

It is a super-2 number, since 2×1200133011² = 2880638488183852242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1200133019) 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, 23295 + ... + 54248.

It is an arithmetic number, because the mean of its divisors is an integer number (63275904).

Almost surely, 2^1200133011 is an apocalyptic number.

1200133011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1200133011 is a deficient number, since it is larger than the sum of its proper divisors (824695917).

1200133011 is a wasteful number, since it uses less digits than its factorization.

1200133011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77631.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1200133011 is about 34642.9359465967. The cubic root of 1200133011 is about 1062.6978303095.

Adding to 1200133011 its reverse (1103310021), we get a palindrome (2303443032).

The spelling of 1200133011 in words is "one billion, two hundred million, one hundred thirty-three thousand, eleven".