21024403001032 has 32 divisors (see below), whose sum is σ = 42867721550520. Its totient is φ = 9626435712000.

The previous prime is 21024403001029. The next prime is 21024403001123. The reversal of 21024403001032 is 23010030442012.

It can be written as a sum of positive squares in 4 ways, for example, as 20751432279876 + 272970721156 = 4555374^2 + 522466^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21024403000994 and 21024403001012.

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, 2089065219 + ... + 2089075282.

Almost surely, 2^{21024403001032} is an apocalyptic number.

It is an amenable number.

21024403001032 is an abundant number, since it is smaller than the sum of its proper divisors (21843318549488).

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

21024403001032 is a wasteful number, since it uses less digits than its factorization.

21024403001032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4178140561 (or 4178140557 counting only the distinct ones).

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

Adding to 21024403001032 its reverse (23010030442012), we get a palindrome (44034433443044).

The spelling of 21024403001032 in words is "twenty-one trillion, twenty-four billion, four hundred three million, one thousand, thirty-two".