1011113021 has 8 divisors (see below), whose sum is σ = 1045701120. Its totient is φ = 977069808.

The previous prime is 1011113011. The next prime is 1011113071. The reversal of 1011113021 is 1203111101.

It is a happy number.

1011113021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1011113021 - 2¹⁸ = 1010850877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1011112993 and 1011113011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011113011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132446 + ... + 139871.

It is an arithmetic number, because the mean of its divisors is an integer number (130712640).

Almost surely, 2^1011113021 is an apocalyptic number.

It is an amenable number.

1011113021 is a deficient number, since it is larger than the sum of its proper divisors (34588099).

1011113021 is an equidigital number, since it uses as much as digits as its factorization.

1011113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272443.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1011113021 is about 31798.0034121641. The cubic root of 1011113021 is about 1003.6907022926.

Adding to 1011113021 its reverse (1203111101), we get a palindrome (2214224122).

It can be divided in two parts, 10111 and 13021, that added together give a palindrome (23132).

The spelling of 1011113021 in words is "one billion, eleven million, one hundred thirteen thousand, twenty-one".