101213131 has 8 divisors (see below), whose sum is σ = 102103200. Its totient is φ = 100326912.

The previous prime is 101213129. The next prime is 101213173. The reversal of 101213131 is 131312101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101213131 - 2¹ = 101213129 is a prime.

It is a super-2 number, since 2×101213131² = 20488195773646322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101213111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77026 + ... + 78328.

It is an arithmetic number, because the mean of its divisors is an integer number (12762900).

Almost surely, 2^101213131 is an apocalyptic number.

101213131 is a deficient number, since it is larger than the sum of its proper divisors (890069).

101213131 is a wasteful number, since it uses less digits than its factorization.

101213131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 101213131 is about 10060.4736966010. The cubic root of 101213131 is about 466.0282959112.

Adding to 101213131 its reverse (131312101), we get a palindrome (232525232).

The spelling of 101213131 in words is "one hundred one million, two hundred thirteen thousand, one hundred thirty-one".