423111510345521 has 8 divisors (see below), whose sum is σ = 432116275250304. Its totient is φ = 414106845121840.

The previous prime is 423111510345413. The next prime is 423111510345527. The reversal of 423111510345521 is 125543015111324.

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-423111510345521 is a prime.

It is a super-2 number, since 2×423111510345521² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423111510345527) 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, 16309310 + ... + 33349911.

It is an arithmetic number, because the mean of its divisors is an integer number (54014534406288).

Almost surely, 2^{423111510345521} is an apocalyptic number.

It is an amenable number.

423111510345521 is a deficient number, since it is larger than the sum of its proper divisors (9004764904783).

423111510345521 is a wasteful number, since it uses less digits than its factorization.

423111510345521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49840551.

The product of its (nonzero) digits is 72000, while the sum is 38.

Adding to 423111510345521 its reverse (125543015111324), we get a palindrome (548654525456845).

The spelling of 423111510345521 in words is "four hundred twenty-three trillion, one hundred eleven billion, five hundred ten million, three hundred forty-five thousand, five hundred twenty-one".