421137003473 has 8 divisors (see below), whose sum is σ = 435904187880. Its totient is φ = 406386167040.

The previous prime is 421137003409. The next prime is 421137003491. The reversal of 421137003473 is 374300731124.

It can be written as a sum of positive squares in 4 ways, for example, as 162160846864 + 258976156609 = 402692^2 + 508897^2 .

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 421137003473 - 2⁶ = 421137003409 is a prime.

It is a super-2 number, since 2×421137003473² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421137006473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4034558 + ... + 4137623.

It is an arithmetic number, because the mean of its divisors is an integer number (54488023485).

Almost surely, 2^421137003473 is an apocalyptic number.

It is an amenable number.

421137003473 is a deficient number, since it is larger than the sum of its proper divisors (14767184407).

421137003473 is a wasteful number, since it uses less digits than its factorization.

421137003473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8173987.

The product of its (nonzero) digits is 42336, while the sum is 35.

Adding to 421137003473 its reverse (374300731124), we get a palindrome (795437734597).

The spelling of 421137003473 in words is "four hundred twenty-one billion, one hundred thirty-seven million, three thousand, four hundred seventy-three".