133213011 has 16 divisors (see below), whose sum is σ = 182198016. Its totient is φ = 86528736.

The previous prime is 133212949. The next prime is 133213043. The reversal of 133213011 is 110312331.

It is not a de Polignac number, because 133213011 - 2¹⁰ = 133211987 is a prime.

It is a super-2 number, since 2×133213011² = 35491412599372242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133213051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63861 + ... + 65913.

It is an arithmetic number, because the mean of its divisors is an integer number (11387376).

Almost surely, 2^133213011 is an apocalyptic number.

133213011 is a deficient number, since it is larger than the sum of its proper divisors (48985005).

133213011 is a wasteful number, since it uses less digits than its factorization.

133213011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 133213011 is about 11541.7940979728. The cubic root of 133213011 is about 510.7192351150.

Adding to 133213011 its reverse (110312331), we get a palindrome (243525342).

The spelling of 133213011 in words is "one hundred thirty-three million, two hundred thirteen thousand, eleven".