21320230414 has 16 divisors (see below), whose sum is σ = 37148131296. Its totient is φ = 8987450400.

The previous prime is 21320230357. The next prime is 21320230471. The reversal of 21320230414 is 41403202312.

It is an interprime number because it is at equal distance from previous prime (21320230357) and next prime (21320230471).

It is a super-2 number, since 2×21320230414² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12481717 + ... + 12483424.

It is an arithmetic number, because the mean of its divisors is an integer number (2321758206).

Almost surely, 2^21320230414 is an apocalyptic number.

21320230414 is a deficient number, since it is larger than the sum of its proper divisors (15827900882).

21320230414 is a wasteful number, since it uses less digits than its factorization.

21320230414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24965211.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21320230414 its reverse (41403202312), we get a palindrome (62723432726).

The spelling of 21320230414 in words is "twenty-one billion, three hundred twenty million, two hundred thirty thousand, four hundred fourteen".