1213202101331 has 8 divisors (see below), whose sum is σ = 1323748321200. Its totient is φ = 1102698401440.

The previous prime is 1213202101259. The next prime is 1213202101343. The reversal of 1213202101331 is 1331012023121.

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-1213202101331 is a prime.

It is a super-2 number, since 2×1213202101331² (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 (1213202131331) 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, 10570316 + ... + 10684473.

It is an arithmetic number, because the mean of its divisors is an integer number (165468540150).

Almost surely, 2^{1213202101331} is an apocalyptic number.

1213202101331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1213202101331 is a deficient number, since it is larger than the sum of its proper divisors (110546219869).

1213202101331 is a wasteful number, since it uses less digits than its factorization.

1213202101331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21259989.

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

Adding to 1213202101331 its reverse (1331012023121), we get a palindrome (2544214124452).

The spelling of 1213202101331 in words is "one trillion, two hundred thirteen billion, two hundred two million, one hundred one thousand, three hundred thirty-one".