1213114013 has 4 divisors (see below), whose sum is σ = 1213326240. Its totient is φ = 1212901788.

The previous prime is 1213114009. The next prime is 1213114031. The reversal of 1213114013 is 3104113121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3104113121 = 107 ⋅29010403.

It is a cyclic number.

It is not a de Polignac number, because 1213114013 - 2² = 1213114009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1213113982 and 1213114000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213114613) 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, 97295 + ... + 109052.

It is an arithmetic number, because the mean of its divisors is an integer number (303331560).

Almost surely, 2^1213114013 is an apocalyptic number.

It is an amenable number.

1213114013 is a deficient number, since it is larger than the sum of its proper divisors (212227).

1213114013 is an equidigital number, since it uses as much as digits as its factorization.

1213114013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212226.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1213114013 is about 34829.7862898985. The cubic root of 1213114013 is about 1066.5155857094.

Adding to 1213114013 its reverse (3104113121), we get a palindrome (4317227134).

The spelling of 1213114013 in words is "one billion, two hundred thirteen million, one hundred fourteen thousand, thirteen".