1113020213231 has 2 divisors, whose sum is σ = 1113020213232. Its totient is φ = 1113020213230.

The previous prime is 1113020213177. The next prime is 1113020213317. The reversal of 1113020213231 is 1323120203111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113020213231 is a prime.

It is a super-2 number, since 2×1113020213231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113020210231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556510106615 + 556510106616.

It is an arithmetic number, because the mean of its divisors is an integer number (556510106616).

Almost surely, 2^{1113020213231} is an apocalyptic number.

1113020213231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113020213231 is an equidigital number, since it uses as much as digits as its factorization.

1113020213231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1113020213231 its reverse (1323120203111), we get a palindrome (2436140416342).

The spelling of 1113020213231 in words is "one trillion, one hundred thirteen billion, twenty million, two hundred thirteen thousand, two hundred thirty-one".