21035001037 has 8 divisors (see below), whose sum is σ = 21405444192. Its totient is φ = 20667738000.

The previous prime is 21035000999. The next prime is 21035001041. The reversal of 21035001037 is 73010053012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21035001037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21035000999 and 21035001017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21035001047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 781683 + ... + 808144.

It is an arithmetic number, because the mean of its divisors is an integer number (2675680524).

Almost surely, 2^21035001037 is an apocalyptic number.

It is an amenable number.

21035001037 is a deficient number, since it is larger than the sum of its proper divisors (370443155).

21035001037 is a wasteful number, since it uses less digits than its factorization.

21035001037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590059.

The product of its (nonzero) digits is 630, while the sum is 22.

Adding to 21035001037 its reverse (73010053012), we get a palindrome (94045054049).

The spelling of 21035001037 in words is "twenty-one billion, thirty-five million, one thousand, thirty-seven".