12011201030981 has 2 divisors, whose sum is σ = 12011201030982. Its totient is φ = 12011201030980.

The previous prime is 12011201030957. The next prime is 12011201030999. The reversal of 12011201030981 is 18903010211021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9860165208100 + 2151035822881 = 3140090^2 + 1466641^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011201030981 - 2¹⁴ = 12011201014597 is a prime.

It is a super-2 number, since 2×12011201030981² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011201030951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005600515490 + 6005600515491.

It is an arithmetic number, because the mean of its divisors is an integer number (6005600515491).

Almost surely, 2^{12011201030981} is an apocalyptic number.

It is an amenable number.

12011201030981 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011201030981 is an equidigital number, since it uses as much as digits as its factorization.

12011201030981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 12011201030981 in words is "twelve trillion, eleven billion, two hundred one million, thirty thousand, nine hundred eighty-one".