1021113023 has 8 divisors (see below), whose sum is σ = 1191816192. Its totient is φ = 856617336.

The previous prime is 1021113001. The next prime is 1021113053. The reversal of 1021113023 is 3203111201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021113023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021112989 and 1021113007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021113053) 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, 1551515 + ... + 1552172.

It is an arithmetic number, because the mean of its divisors is an integer number (148977024).

Almost surely, 2^1021113023 is an apocalyptic number.

1021113023 is a deficient number, since it is larger than the sum of its proper divisors (170703169).

1021113023 is an equidigital number, since it uses as much as digits as its factorization.

1021113023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3103741.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1021113023 is about 31954.8591453632. The cubic root of 1021113023 is about 1006.9887183675.

Adding to 1021113023 its reverse (3203111201), we get a palindrome (4224224224).

The spelling of 1021113023 in words is "one billion, twenty-one million, one hundred thirteen thousand, twenty-three".