1213233523441 has 4 divisors (see below), whose sum is σ = 1225012489792. Its totient is φ = 1201454557092.

The previous prime is 1213233523423. The next prime is 1213233523451. The reversal of 1213233523441 is 1443253323121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1213233523441 - 2⁹ = 1213233522929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1213233523397 and 1213233523406.

It is not an unprimeable number, because it can be changed into a prime (1213233523451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5889483021 + ... + 5889483226.

It is an arithmetic number, because the mean of its divisors is an integer number (306253122448).

Almost surely, 2^{1213233523441} is an apocalyptic number.

It is an amenable number.

1213233523441 is a deficient number, since it is larger than the sum of its proper divisors (11778966351).

1213233523441 is a wasteful number, since it uses less digits than its factorization.

1213233523441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11778966350.

The product of its digits is 51840, while the sum is 34.

Adding to 1213233523441 its reverse (1443253323121), we get a palindrome (2656486846562).

The spelling of 1213233523441 in words is "one trillion, two hundred thirteen billion, two hundred thirty-three million, five hundred twenty-three thousand, four hundred forty-one".