12111542783 has 2 divisors, whose sum is σ = 12111542784. Its totient is φ = 12111542782.

The previous prime is 12111542771. The next prime is 12111542809. The reversal of 12111542783 is 38724511121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12111542783 - 2⁶ = 12111542719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12111547783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055771391 + 6055771392.

It is an arithmetic number, because the mean of its divisors is an integer number (6055771392).

Almost surely, 2^12111542783 is an apocalyptic number.

12111542783 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111542783 is an equidigital number, since it uses as much as digits as its factorization.

12111542783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 35.

The spelling of 12111542783 in words is "twelve billion, one hundred eleven million, five hundred forty-two thousand, seven hundred eighty-three".