1244113211 has 4 divisors (see below), whose sum is σ = 1357214424. Its totient is φ = 1131012000.

The previous prime is 1244113201. The next prime is 1244113219. The reversal of 1244113211 is 1123114421.

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 1244113211 - 2¹⁰ = 1244112187 is a prime.

It is a super-3 number, since 3×1244113211³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244113219) 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, 56550590 + ... + 56550611.

It is an arithmetic number, because the mean of its divisors is an integer number (339303606).

Almost surely, 2^1244113211 is an apocalyptic number.

1244113211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1244113211 is a deficient number, since it is larger than the sum of its proper divisors (113101213).

1244113211 is a wasteful number, since it uses less digits than its factorization.

1244113211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113101212.

The product of its digits is 192, while the sum is 20.

The square root of 1244113211 is about 35271.9890422981. The cubic root of 1244113211 is about 1075.5236564657.

Adding to 1244113211 its reverse (1123114421), we get a palindrome (2367227632).

It can be divided in two parts, 12441 and 13211, that added together give a palindrome (25652).

The spelling of 1244113211 in words is "one billion, two hundred forty-four million, one hundred thirteen thousand, two hundred eleven".