1213201203131 has 8 divisors (see below), whose sum is σ = 1267513932960. Its totient is φ = 1159018877632.

The previous prime is 1213201203091. The next prime is 1213201203241. The reversal of 1213201203131 is 1313021023121.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213201203131 is a prime.

It is a super-2 number, since 2×1213201203131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213201203031) 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, 32582060 + ... + 32619273.

It is an arithmetic number, because the mean of its divisors is an integer number (158439241620).

Almost surely, 2^{1213201203131} is an apocalyptic number.

1213201203131 is a deficient number, since it is larger than the sum of its proper divisors (54312729829).

1213201203131 is an equidigital number, since it uses as much as digits as its factorization.

1213201203131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65202165.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1213201203131 its reverse (1313021023121), we get a palindrome (2526222226252).

The spelling of 1213201203131 in words is "one trillion, two hundred thirteen billion, two hundred one million, two hundred three thousand, one hundred thirty-one".