1244212431 has 64 divisors (see below), whose sum is σ = 2140646400. Its totient is φ = 624015360.

The previous prime is 1244212421. The next prime is 1244212441. The reversal of 1244212431 is 1342124421.

It is an interprime number because it is at equal distance from previous prime (1244212421) and next prime (1244212441).

It is not a de Polignac number, because 1244212431 - 2⁵ = 1244212399 is a prime.

It is a super-2 number, since 2×1244212431² = 3096129146909859522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244212421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1273015 + ... + 1273991.

It is an arithmetic number, because the mean of its divisors is an integer number (33447600).

Almost surely, 2^1244212431 is an apocalyptic number.

1244212431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1244212431 is a deficient number, since it is larger than the sum of its proper divisors (896433969).

1244212431 is a wasteful number, since it uses less digits than its factorization.

1244212431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184.

The product of its digits is 1536, while the sum is 24.

The square root of 1244212431 is about 35273.3955127657. The cubic root of 1244212431 is about 1075.5522472776.

Adding to 1244212431 its reverse (1342124421), we get a palindrome (2586336852).

The spelling of 1244212431 in words is "one billion, two hundred forty-four million, two hundred twelve thousand, four hundred thirty-one".