213001131 has 8 divisors (see below), whose sum is σ = 324573184. Its totient is φ = 121714920.

The previous prime is 213001127. The next prime is 213001141. The reversal of 213001131 is 131100312.

213001131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 213001131 - 2² = 213001127 is a prime.

It is a super-2 number, since 2×213001131² = 90738963614558322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213001121) 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, 5071435 + ... + 5071476.

It is an arithmetic number, because the mean of its divisors is an integer number (40571648).

Almost surely, 2^213001131 is an apocalyptic number.

213001131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

213001131 is a deficient number, since it is larger than the sum of its proper divisors (111572053).

213001131 is a wasteful number, since it uses less digits than its factorization.

213001131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10142921.

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

The square root of 213001131 is about 14594.5582666965. The cubic root of 213001131 is about 597.2103190131.

Adding to 213001131 its reverse (131100312), we get a palindrome (344101443).

The spelling of 213001131 in words is "two hundred thirteen million, one thousand, one hundred thirty-one".