1011243101 has 12 divisors (see below), whose sum is σ = 1112412000. Its totient is φ = 918584040.

The previous prime is 1011243071. The next prime is 1011243109. The reversal of 1011243101 is 1013421101.

1011243101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-1011243101 is a prime.

It is a super-2 number, since 2×1011243101² = 2045225218640192402, 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, 203120 + ... + 208038.

It is an arithmetic number, because the mean of its divisors is an integer number (92701000).

Almost surely, 2^1011243101 is an apocalyptic number.

1011243101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1011243101 is a deficient number, since it is larger than the sum of its proper divisors (101168899).

1011243101 is a wasteful number, since it uses less digits than its factorization.

1011243101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6640 (or 6629 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1011243101 is about 31800.0487578243. The cubic root of 1011243101 is about 1003.7337421524.

Adding to 1011243101 its reverse (1013421101), we get a palindrome (2024664202).

The spelling of 1011243101 in words is "one billion, eleven million, two hundred forty-three thousand, one hundred one".