1011243103 has 12 divisors (see below), whose sum is σ = 1103397768. Its totient is φ = 926309280.

The previous prime is 1011243071. The next prime is 1011243109. The reversal of 1011243103 is 3013421101.

It is not a de Polignac number, because 1011243103 - 2⁵ = 1011243071 is a prime.

It is a super-2 number, since 2×1011243103² = 2045225226730137218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011243109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 700 + ... + 44977.

It is an arithmetic number, because the mean of its divisors is an integer number (91949814).

Almost surely, 2^1011243103 is an apocalyptic number.

1011243103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1011243103 is a deficient number, since it is larger than the sum of its proper divisors (92154665).

1011243103 is a wasteful number, since it uses less digits than its factorization.

1011243103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45834 (or 45821 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1011243103 is about 31800.0487892707. The cubic root of 1011243103 is about 1003.7337428141.

Adding to 1011243103 its reverse (3013421101), we get a palindrome (4024664204).

The spelling of 1011243103 in words is "one billion, eleven million, two hundred forty-three thousand, one hundred three".