1111012011947 has 2 divisors, whose sum is σ = 1111012011948. Its totient is φ = 1111012011946.

The previous prime is 1111012011887. The next prime is 1111012012153. The reversal of 1111012011947 is 7491102101111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111012011947 - 2²⁶ = 1110944903083 is a prime.

It is a super-3 number, since 3×1111012011947³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1111012011547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555506005973 + 555506005974.

It is an arithmetic number, because the mean of its divisors is an integer number (555506005974).

Almost surely, 2^{1111012011947} is an apocalyptic number.

1111012011947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111012011947 is an equidigital number, since it uses as much as digits as its factorization.

1111012011947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 29.

The spelling of 1111012011947 in words is "one trillion, one hundred eleven billion, twelve million, eleven thousand, nine hundred forty-seven".