423521043413 has 12 divisors (see below), whose sum is σ = 469270882080. Its totient is φ = 381850808976.

The previous prime is 423521043409. The next prime is 423521043437. The reversal of 423521043413 is 314340125324.

It is not a de Polignac number, because 423521043413 - 2² = 423521043409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423521043413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423521040413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29132753 + ... + 29147286.

It is an arithmetic number, because the mean of its divisors is an integer number (39105906840).

Almost surely, 2^423521043413 is an apocalyptic number.

423521043413 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

423521043413 is a deficient number, since it is larger than the sum of its proper divisors (45749838667).

423521043413 is a wasteful number, since it uses less digits than its factorization.

423521043413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58280108 (or 58280095 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 423521043413 its reverse (314340125324), we get a palindrome (737861168737).

The spelling of 423521043413 in words is "four hundred twenty-three billion, five hundred twenty-one million, forty-three thousand, four hundred thirteen".