101213133 has 64 divisors (see below), whose sum is σ = 174182400. Its totient is φ = 50941440.

The previous prime is 101213129. The next prime is 101213173. The reversal of 101213133 is 331312101.

It is not a de Polignac number, because 101213133 - 2² = 101213129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101213173) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 376123 + ... + 376391.

It is an arithmetic number, because the mean of its divisors is an integer number (2721600).

Almost surely, 2^101213133 is an apocalyptic number.

It is an amenable number.

101213133 is a deficient number, since it is larger than the sum of its proper divisors (72969267).

101213133 is a wasteful number, since it uses less digits than its factorization.

101213133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362.

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

The square root of 101213133 is about 10060.4737959999. The cubic root of 101213133 is about 466.0282989808.

Adding to 101213133 its reverse (331312101), we get a palindrome (432525234).

The spelling of 101213133 in words is "one hundred one million, two hundred thirteen thousand, one hundred thirty-three".