1311252234421 has 8 divisors (see below), whose sum is σ = 1311781019904. Its totient is φ = 1310723536320.

The previous prime is 1311252234407. The next prime is 1311252234431. The reversal of 1311252234421 is 1244322521131.

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 1311252234421 - 2⁹ = 1311252233909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311252234431) 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, 55173181 + ... + 55196941.

It is an arithmetic number, because the mean of its divisors is an integer number (163972627488).

Almost surely, 2^{1311252234421} is an apocalyptic number.

It is an amenable number.

1311252234421 is a deficient number, since it is larger than the sum of its proper divisors (528785483).

1311252234421 is a wasteful number, since it uses less digits than its factorization.

1311252234421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43691.

The product of its digits is 11520, while the sum is 31.

Adding to 1311252234421 its reverse (1244322521131), we get a palindrome (2555574755552).

The spelling of 1311252234421 in words is "one trillion, three hundred eleven billion, two hundred fifty-two million, two hundred thirty-four thousand, four hundred twenty-one".