351044030021 has 8 divisors (see below), whose sum is σ = 351988299360. Its totient is φ = 350100445552.

The previous prime is 351044030011. The next prime is 351044030053. The reversal of 351044030021 is 120030440153.

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

It is a cyclic number.

It is not a de Polignac number, because 351044030021 - 2¹⁰ = 351044028997 is a prime.

It is a super-2 number, since 2×351044030021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351044030011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863690 + ... + 1203348.

It is an arithmetic number, because the mean of its divisors is an integer number (43998537420).

Almost surely, 2^351044030021 is an apocalyptic number.

It is an amenable number.

351044030021 is a deficient number, since it is larger than the sum of its proper divisors (944269339).

351044030021 is a wasteful number, since it uses less digits than its factorization.

351044030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342435.

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

Adding to 351044030021 its reverse (120030440153), we get a palindrome (471074470174).

The spelling of 351044030021 in words is "three hundred fifty-one billion, forty-four million, thirty thousand, twenty-one".