1244055123 has 12 divisors (see below), whose sum is σ = 1821585480. Its totient is φ = 818008416.

The previous prime is 1244055103. The next prime is 1244055139. The reversal of 1244055123 is 3215504421.

It is not a de Polignac number, because 1244055123 - 2¹⁶ = 1243989587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1244055103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 946113 + ... + 947426.

It is an arithmetic number, because the mean of its divisors is an integer number (151798790).

Almost surely, 2^1244055123 is an apocalyptic number.

1244055123 is a deficient number, since it is larger than the sum of its proper divisors (577530357).

1244055123 is a wasteful number, since it uses less digits than its factorization.

1244055123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893618 (or 1893615 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1244055123 is about 35271.1656030815. The cubic root of 1244055123 is about 1075.5069173699.

Adding to 1244055123 its reverse (3215504421), we get a palindrome (4459559544).

The spelling of 1244055123 in words is "one billion, two hundred forty-four million, fifty-five thousand, one hundred twenty-three".