1030011021 has 48 divisors (see below), whose sum is σ = 1632956416. Its totient is φ = 621831168.

The previous prime is 1030010999. The next prime is 1030011041. The reversal of 1030011021 is 1201100301.

It is not a de Polignac number, because 1030011021 - 2²¹ = 1027913869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1030010994 and 1030011012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030011041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1530141 + ... + 1530813.

Almost surely, 2^1030011021 is an apocalyptic number.

It is an amenable number.

1030011021 is a deficient number, since it is larger than the sum of its proper divisors (602945395).

1030011021 is a wasteful number, since it uses less digits than its factorization.

1030011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1030011021 is about 32093.7847721331. The cubic root of 1030011021 is about 1009.9052360196.

Adding to 1030011021 its reverse (1201100301), we get a palindrome (2231111322).

It can be divided in two parts, 10300 and 11021, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 1030011021 in words is "one billion, thirty million, eleven thousand, twenty-one".