421253114531 has 8 divisors (see below), whose sum is σ = 422090717328. Its totient is φ = 420416172000.

The previous prime is 421253114509. The next prime is 421253114563. The reversal of 421253114531 is 135411352124.

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-421253114531 is a prime.

It is a super-2 number, since 2×421253114531² (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 (421253113531) 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, 1122161 + ... + 1449741.

It is an arithmetic number, because the mean of its divisors is an integer number (52761339666).

Almost surely, 2^421253114531 is an apocalyptic number.

421253114531 is a deficient number, since it is larger than the sum of its proper divisors (837602797).

421253114531 is a wasteful number, since it uses less digits than its factorization.

421253114531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330133.

The product of its digits is 14400, while the sum is 32.

Adding to 421253114531 its reverse (135411352124), we get a palindrome (556664466655).

The spelling of 421253114531 in words is "four hundred twenty-one billion, two hundred fifty-three million, one hundred fourteen thousand, five hundred thirty-one".