1213241023 has 4 divisors (see below), whose sum is σ = 1284608160. Its totient is φ = 1141873888.

The previous prime is 1213241011. The next prime is 1213241041. The reversal of 1213241023 is 3201423121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1213241023 - 2²⁵ = 1179686591 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 (1213247023) 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, 35683543 + ... + 35683576.

It is an arithmetic number, because the mean of its divisors is an integer number (321152040).

Almost surely, 2^1213241023 is an apocalyptic number.

1213241023 is a deficient number, since it is larger than the sum of its proper divisors (71367137).

1213241023 is an equidigital number, since it uses as much as digits as its factorization.

1213241023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71367136.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1213241023 is about 34831.6095378896. The cubic root of 1213241023 is about 1066.5528049144.

Adding to 1213241023 its reverse (3201423121), we get a palindrome (4414664144).

The spelling of 1213241023 in words is "one billion, two hundred thirteen million, two hundred forty-one thousand, twenty-three".