1011920103 has 6 divisors (see below), whose sum is σ = 1461662384. Its totient is φ = 674613396.

The previous prime is 1011920081. The next prime is 1011920123. The reversal of 1011920103 is 3010291101.

It is not a de Polignac number, because 1011920103 - 2¹⁰ = 1011919079 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 (1011920123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56217775 + ... + 56217792.

Almost surely, 2^1011920103 is an apocalyptic number.

1011920103 is a deficient number, since it is larger than the sum of its proper divisors (449742281).

1011920103 is a wasteful number, since it uses less digits than its factorization.

1011920103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112435573 (or 112435570 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 1011920103 is about 31810.6916460488. The cubic root of 1011920103 is about 1003.9576837426.

The spelling of 1011920103 in words is "one billion, eleven million, nine hundred twenty thousand, one hundred three".