1213425319 has 2 divisors, whose sum is σ = 1213425320. Its totient is φ = 1213425318.

The previous prime is 1213425251. The next prime is 1213425331. The reversal of 1213425319 is 9135243121.

It is a strong prime.

It is an emirp because it is prime and its reverse (9135243121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213425319 - 2¹¹ = 1213423271 is a prime.

It is a super-2 number, since 2×1213425319² = 2944802009580503522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213425379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606712659 + 606712660.

It is an arithmetic number, because the mean of its divisors is an integer number (606712660).

Almost surely, 2^1213425319 is an apocalyptic number.

1213425319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213425319 is an equidigital number, since it uses as much as digits as its factorization.

1213425319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 1213425319 is about 34834.2549654790. The cubic root of 1213425319 is about 1066.6068066777.

The spelling of 1213425319 in words is "one billion, two hundred thirteen million, four hundred twenty-five thousand, three hundred nineteen".