1021130023 has 8 divisors (see below), whose sum is σ = 1041310080. Its totient is φ = 1001111160.

The previous prime is 1021130003. The next prime is 1021130029. The reversal of 1021130023 is 3200311201.

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 1021130023 - 2⁹ = 1021129511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021129985 and 1021130012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021130029) 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, 27465 + ... + 52882.

It is an arithmetic number, because the mean of its divisors is an integer number (130163760).

Almost surely, 2^1021130023 is an apocalyptic number.

1021130023 is a deficient number, since it is larger than the sum of its proper divisors (20180057).

1021130023 is an equidigital number, since it uses as much as digits as its factorization.

1021130023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80597.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1021130023 is about 31955.1251444897. The cubic root of 1021130023 is about 1006.9943066203.

Adding to 1021130023 its reverse (3200311201), we get a palindrome (4221441224).

It can be divided in two parts, 1021 and 130023, that added together give a square (131044 = 362²).

The spelling of 1021130023 in words is "one billion, twenty-one million, one hundred thirty thousand, twenty-three".