421432313221131 has 16 divisors (see below), whose sum is σ = 565746155700000. Its totient is φ = 279037107767808.

The previous prime is 421432313221063. The next prime is 421432313221147. The reversal of 421432313221131 is 131122313234124.

It is not a de Polignac number, because 421432313221131 - 2³⁹ = 420882557407243 is a prime.

It is a super-2 number, since 2×421432313221131² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421432313221092 and 421432313221101.

It is not an unprimeable number, because it can be changed into a prime (421432313221181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50449006 + ... + 58206243.

It is an arithmetic number, because the mean of its divisors is an integer number (35359134731250).

Almost surely, 2^{421432313221131} is an apocalyptic number.

421432313221131 is a deficient number, since it is larger than the sum of its proper divisors (144313842478869).

421432313221131 is a wasteful number, since it uses less digits than its factorization.

421432313221131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108664078.

The product of its digits is 20736, while the sum is 33.

Adding to 421432313221131 its reverse (131122313234124), we get a palindrome (552554626455255).

The spelling of 421432313221131 in words is "four hundred twenty-one trillion, four hundred thirty-two billion, three hundred thirteen million, two hundred twenty-one thousand, one hundred thirty-one".