1211321404341 has 12 divisors (see below), whose sum is σ = 1806127972480. Its totient is φ = 781497680040.

The previous prime is 1211321404333. The next prime is 1211321404343. The reversal of 1211321404341 is 1434041231121.

It is a happy number.

1211321404341 is a `hidden beast` number, since 1 + 2 + 1 + 13 + 214 + 0 + 434 + 1 = 666.

It is not a de Polignac number, because 1211321404341 - 2³ = 1211321404333 is a prime.

It is a super-2 number, since 2×1211321404341² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211321404343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2170826611 + ... + 2170827168.

Almost surely, 2^{1211321404341} is an apocalyptic number.

It is an amenable number.

1211321404341 is a deficient number, since it is larger than the sum of its proper divisors (594806568139).

1211321404341 is a wasteful number, since it uses less digits than its factorization.

1211321404341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4341653816 (or 4341653813 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 1211321404341 its reverse (1434041231121), we get a palindrome (2645362635462).

The spelling of 1211321404341 in words is "one trillion, two hundred eleven billion, three hundred twenty-one million, four hundred four thousand, three hundred forty-one".