21341231030 has 128 divisors (see below), whose sum is σ = 47140724736. Its totient is φ = 6797260800.

The previous prime is 21341231029. The next prime is 21341231059. The reversal of 21341231030 is 3013214312.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21341230993 and 21341231011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17888114 + ... + 17889306.

It is an arithmetic number, because the mean of its divisors is an integer number (368286912).

Almost surely, 2^21341231030 is an apocalyptic number.

21341231030 is an abundant number, since it is smaller than the sum of its proper divisors (25799493706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21341231030 is a wasteful number, since it uses less digits than its factorization.

21341231030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21341231030 its reverse (3013214312), we get a palindrome (24354445342).

It can be divided in two parts, 213412 and 31030, that added together give a palindrome (244442).

The spelling of 21341231030 in words is "twenty-one billion, three hundred forty-one million, two hundred thirty-one thousand, thirty".