1231033013219 has 2 divisors, whose sum is σ = 1231033013220. Its totient is φ = 1231033013218.

The previous prime is 1231033013183. The next prime is 1231033013263. The reversal of 1231033013219 is 9123103301321.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9123103301321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231033013219 is a prime.

It is a super-2 number, since 2×1231033013219² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1231033013191 and 1231033013200.

It is not a weakly prime, because it can be changed into another prime (1231033013269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615516506609 + 615516506610.

It is an arithmetic number, because the mean of its divisors is an integer number (615516506610).

Almost surely, 2^{1231033013219} is an apocalyptic number.

1231033013219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231033013219 is an equidigital number, since it uses as much as digits as its factorization.

1231033013219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The spelling of 1231033013219 in words is "one trillion, two hundred thirty-one billion, thirty-three million, thirteen thousand, two hundred nineteen".