1121011999993 has 2 divisors, whose sum is σ = 1121011999994. Its totient is φ = 1121011999992.

The previous prime is 1121011999937. The next prime is 1121012000011. The reversal of 1121011999993 is 3999991101211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 648922080249 + 472089919744 = 805557^2 + 687088^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121011999993 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121011969993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560505999996 + 560505999997.

It is an arithmetic number, because the mean of its divisors is an integer number (560505999997).

Almost surely, 2^{1121011999993} is an apocalyptic number.

It is an amenable number.

1121011999993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121011999993 is an equidigital number, since it uses as much as digits as its factorization.

1121011999993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 354294, while the sum is 55.

The spelling of 1121011999993 in words is "one trillion, one hundred twenty-one billion, eleven million, nine hundred ninety-nine thousand, nine hundred ninety-three".