1011920093 has 4 divisors (see below), whose sum is σ = 1014521820. Its totient is φ = 1009318368.

The previous prime is 1011920081. The next prime is 1011920123. The reversal of 1011920093 is 3900291101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 156825529 + 855094564 = 12523^2 + 29242^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011920093 - 2⁸ = 1011919837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011920003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1300280 + ... + 1301057.

It is an arithmetic number, because the mean of its divisors is an integer number (253630455).

Almost surely, 2^1011920093 is an apocalyptic number.

It is an amenable number.

1011920093 is a deficient number, since it is larger than the sum of its proper divisors (2601727).

1011920093 is an equidigital number, since it uses as much as digits as its factorization.

1011920093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601726.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 1011920093 is about 31810.6914888690. The cubic root of 1011920093 is about 1003.9576804355.

The spelling of 1011920093 in words is "one billion, eleven million, nine hundred twenty thousand, ninety-three".