421033032111421 has 16 divisors (see below), whose sum is σ = 431684036784000. Its totient is φ = 410400304473600.

The previous prime is 421033032111409. The next prime is 421033032111479. The reversal of 421033032111421 is 124111230330124.

It is a cyclic number.

It is not a de Polignac number, because 421033032111421 - 2⁹ = 421033032110909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 421033032111421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421033032112421) 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, 372130030 + ... + 373259728.

It is an arithmetic number, because the mean of its divisors is an integer number (26980252299000).

Almost surely, 2^{421033032111421} is an apocalyptic number.

421033032111421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

421033032111421 is a deficient number, since it is larger than the sum of its proper divisors (10651004672579).

421033032111421 is a wasteful number, since it uses less digits than its factorization.

421033032111421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137780.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 421033032111421 its reverse (124111230330124), we get a palindrome (545144262441545).

The spelling of 421033032111421 in words is "four hundred twenty-one trillion, thirty-three billion, thirty-two million, one hundred eleven thousand, four hundred twenty-one".