1161021033105 has 32 divisors (see below), whose sum is σ = 1892171750400. Its totient is φ = 607732439232.

The previous prime is 1161021033017. The next prime is 1161021033197. The reversal of 1161021033105 is 5013301201611.

It is not a de Polignac number, because 1161021033105 - 2¹¹ = 1161021031057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 511869 + ... + 1607498.

It is an arithmetic number, because the mean of its divisors is an integer number (59130367200).

Almost surely, 2^{1161021033105} is an apocalyptic number.

1161021033105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1161021033105 is a deficient number, since it is larger than the sum of its proper divisors (731150717295).

1161021033105 is a wasteful number, since it uses less digits than its factorization.

1161021033105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120053.

The product of its (nonzero) digits is 540, while the sum is 24.

Adding to 1161021033105 its reverse (5013301201611), we get a palindrome (6174322234716).

The spelling of 1161021033105 in words is "one trillion, one hundred sixty-one billion, twenty-one million, thirty-three thousand, one hundred five".