133311230 has 32 divisors (see below), whose sum is σ = 262670688. Its totient is φ = 48412800.

The previous prime is 133311203. The next prime is 133311287. The reversal of 133311230 is 32113331.

It is a super-2 number, since 2×133311230² = 35543768088225800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133311199 and 133311208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476 + ... + 16335.

It is an arithmetic number, because the mean of its divisors is an integer number (8208459).

Almost surely, 2^133311230 is an apocalyptic number.

133311230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133311230 is a deficient number, since it is larger than the sum of its proper divisors (129359458).

133311230 is a wasteful number, since it uses less digits than its factorization.

133311230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16892.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 133311230 is about 11546.0482417146. The cubic root of 133311230 is about 510.8447233809.

Adding to 133311230 its reverse (32113331), we get a palindrome (165424561).

The spelling of 133311230 in words is "one hundred thirty-three million, three hundred eleven thousand, two hundred thirty".