1213424047 has 16 divisors (see below), whose sum is σ = 1333075968. Its totient is φ = 1095362080.

The previous prime is 1213424033. The next prime is 1213424053. The reversal of 1213424047 is 7404243121.

It is a cyclic number.

It is not a de Polignac number, because 1213424047 - 2⁷ = 1213423919 is a prime.

It is a super-3 number, since 3×1213424047³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213424057) 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, 1233918 + ... + 1234900.

It is an arithmetic number, because the mean of its divisors is an integer number (83317248).

Almost surely, 2^1213424047 is an apocalyptic number.

1213424047 is a deficient number, since it is larger than the sum of its proper divisors (119651921).

1213424047 is a wasteful number, since it uses less digits than its factorization.

1213424047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 1213424047 is about 34834.2367075841. The cubic root of 1213424047 is about 1066.6064339795.

Adding to 1213424047 its reverse (7404243121), we get a palindrome (8617667168).

The spelling of 1213424047 in words is "one billion, two hundred thirteen million, four hundred twenty-four thousand, forty-seven".