230000001021 has 24 divisors (see below), whose sum is σ = 387760898304. Its totient is φ = 128632217760.

The previous prime is 230000000987. The next prime is 230000001029. The reversal of 230000001021 is 120100000032.

It is a happy number.

It is not a de Polignac number, because 230000001021 - 2¹⁸ = 229999738877 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 = 230000000994 and 230000001012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230000001029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38835270 + ... + 38841191.

It is an arithmetic number, because the mean of its divisors is an integer number (16156704096).

Almost surely, 2^230000001021 is an apocalyptic number.

230000001021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

230000001021 is a deficient number, since it is larger than the sum of its proper divisors (157760897283).

230000001021 is a wasteful number, since it uses less digits than its factorization.

230000001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77676521 (or 77676518 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 230000001021 its reverse (120100000032), we get a palindrome (350100001053).

The spelling of 230000001021 in words is "two hundred thirty billion, one thousand, twenty-one".