131213121221203 has 8 divisors (see below), whose sum is σ = 150711409875200. Its totient is φ = 111903221829960.

The previous prime is 131213121221191. The next prime is 131213121221243. The reversal of 131213121221203 is 302122121312131.

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 131213121221203 - 2¹⁷ = 131213121090131 is a prime.

It is a super-2 number, since 2×131213121221203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131213121221243) 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, 47097314193 + ... + 47097316978.

It is an arithmetic number, because the mean of its divisors is an integer number (18838926234400).

Almost surely, 2^{131213121221203} is an apocalyptic number.

131213121221203 is a deficient number, since it is larger than the sum of its proper divisors (19498288653997).

131213121221203 is an equidigital number, since it uses as much as digits as its factorization.

131213121221203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94194631377.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 131213121221203 its reverse (302122121312131), we get a palindrome (433335242533334).

The spelling of 131213121221203 in words is "one hundred thirty-one trillion, two hundred thirteen billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred three".