20030102231 has 4 divisors (see below), whose sum is σ = 20030871432. Its totient is φ = 20029333032.

The previous prime is 20030102171. The next prime is 20030102251. The reversal of 20030102231 is 13220103002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13220103002 = 2 ⋅6610051501.

It is a cyclic number.

It is not a de Polignac number, because 20030102231 - 2⁶ = 20030102167 is a prime.

It is a super-2 number, since 2×20030102231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030102251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344120 + ... + 398093.

It is an arithmetic number, because the mean of its divisors is an integer number (5007717858).

Almost surely, 2^20030102231 is an apocalyptic number.

20030102231 is a deficient number, since it is larger than the sum of its proper divisors (769201).

20030102231 is an equidigital number, since it uses as much as digits as its factorization.

20030102231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769200.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20030102231 its reverse (13220103002), we get a palindrome (33250205233).

The spelling of 20030102231 in words is "twenty billion, thirty million, one hundred two thousand, two hundred thirty-one".