131213201 has 8 divisors (see below), whose sum is σ = 150346560. Its totient is φ = 112177008.

The previous prime is 131213177. The next prime is 131213249. The reversal of 131213201 is 102312131.

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 131213201 - 2¹⁸ = 130951057 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131213261) 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, 21371 + ... + 26816.

It is an arithmetic number, because the mean of its divisors is an integer number (18793320).

Almost surely, 2^131213201 is an apocalyptic number.

It is an amenable number.

131213201 is a deficient number, since it is larger than the sum of its proper divisors (19133359).

131213201 is an equidigital number, since it uses as much as digits as its factorization.

131213201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48583.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 131213201 is about 11454.8330847726. The cubic root of 131213201 is about 508.1506788955.

Adding to 131213201 its reverse (102312131), we get a palindrome (233525332).

The spelling of 131213201 in words is "one hundred thirty-one million, two hundred thirteen thousand, two hundred one".