21014230532 has 6 divisors (see below), whose sum is σ = 36774903438. Its totient is φ = 10507115264.

The previous prime is 21014230507. The next prime is 21014230561. The reversal of 21014230532 is 23503241012.

It can be written as a sum of positive squares in only one way, i.e., 14907433216 + 6106797316 = 122096^2 + 78146^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21014230498 and 21014230507.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2626778813 + ... + 2626778820.

It is an arithmetic number, because the mean of its divisors is an integer number (6129150573).

Almost surely, 2^21014230532 is an apocalyptic number.

It is an amenable number.

21014230532 is a deficient number, since it is larger than the sum of its proper divisors (15760672906).

21014230532 is a wasteful number, since it uses less digits than its factorization.

21014230532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5253557637 (or 5253557635 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 21014230532 its reverse (23503241012), we get a palindrome (44517471544).

The spelling of 21014230532 in words is "twenty-one billion, fourteen million, two hundred thirty thousand, five hundred thirty-two".