421523235213131 has 8 divisors (see below), whose sum is σ = 429477888427344. Its totient is φ = 413568633281440.

The previous prime is 421523235213103. The next prime is 421523235213133. The reversal of 421523235213131 is 131312532325124.

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 421523235213131 - 2¹⁴ = 421523235196747 is a prime.

It is a super-2 number, since 2×421523235213131² (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 (421523235213133) 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, 3979520 + ... + 29306706.

It is an arithmetic number, because the mean of its divisors is an integer number (53684736053418).

Almost surely, 2^{421523235213131} is an apocalyptic number.

421523235213131 is a deficient number, since it is larger than the sum of its proper divisors (7954653214213).

421523235213131 is a wasteful number, since it uses less digits than its factorization.

421523235213131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25641261.

The product of its digits is 129600, while the sum is 38.

Adding to 421523235213131 its reverse (131312532325124), we get a palindrome (552835767538255).

The spelling of 421523235213131 in words is "four hundred twenty-one trillion, five hundred twenty-three billion, two hundred thirty-five million, two hundred thirteen thousand, one hundred thirty-one".