1244100023 has 16 divisors (see below), whose sum is σ = 1296003072. Its totient is φ = 1193400000.

The previous prime is 1244100007. The next prime is 1244100043. The reversal of 1244100023 is 3200014421.

It is a cyclic number.

It is not a de Polignac number, because 1244100023 - 2⁴ = 1244100007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1244099974 and 1244100010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244100043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 636698 + ... + 638648.

It is an arithmetic number, because the mean of its divisors is an integer number (81000192).

Almost surely, 2^1244100023 is an apocalyptic number.

1244100023 is a deficient number, since it is larger than the sum of its proper divisors (51903049).

1244100023 is a wasteful number, since it uses less digits than its factorization.

1244100023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1244100023 is about 35271.8020945911. The cubic root of 1244100023 is about 1075.5198561534.

Adding to 1244100023 its reverse (3200014421), we get a palindrome (4444114444).

The spelling of 1244100023 in words is "one billion, two hundred forty-four million, one hundred thousand, twenty-three".