35035021421 has 4 divisors (see below), whose sum is σ = 37095905052. Its totient is φ = 32974137792.

The previous prime is 35035021379. The next prime is 35035021433. The reversal of 35035021421 is 12412053053.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15727918921 + 19307102500 = 125411^2 + 138950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35035021421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35035021621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1030441790 + ... + 1030441823.

It is an arithmetic number, because the mean of its divisors is an integer number (9273976263).

Almost surely, 2^35035021421 is an apocalyptic number.

It is an amenable number.

35035021421 is a deficient number, since it is larger than the sum of its proper divisors (2060883631).

35035021421 is a wasteful number, since it uses less digits than its factorization.

35035021421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060883630.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 35035021421 its reverse (12412053053), we get a palindrome (47447074474).

The spelling of 35035021421 in words is "thirty-five billion, thirty-five million, twenty-one thousand, four hundred twenty-one".