21230073062 has 32 divisors (see below), whose sum is σ = 34977567744. Its totient is φ = 9584176000.

The previous prime is 21230073049. The next prime is 21230073071. The reversal of 21230073062 is 26037003212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7578062 + ... + 7580862.

It is an arithmetic number, because the mean of its divisors is an integer number (1093048992).

Almost surely, 2^21230073062 is an apocalyptic number.

21230073062 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21230073062 is a deficient number, since it is larger than the sum of its proper divisors (13747494682).

21230073062 is a wasteful number, since it uses less digits than its factorization.

21230073062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5044.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 21230073062 its reverse (26037003212), we get a palindrome (47267076274).

The spelling of 21230073062 in words is "twenty-one billion, two hundred thirty million, seventy-three thousand, sixty-two".