421121143331 has 16 divisors (see below), whose sum is σ = 486838410240. Its totient is φ = 356817039840.

The previous prime is 421121143327. The next prime is 421121143343. The reversal of 421121143331 is 133341121124.

It is a cyclic number.

It is not a de Polignac number, because 421121143331 - 2² = 421121143327 is a prime.

It is a super-2 number, since 2×421121143331² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 421121143331.

It is not an unprimeable number, because it can be changed into a prime (421121143231) 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, 783551 + ... + 1206728.

It is an arithmetic number, because the mean of its divisors is an integer number (30427400640).

Almost surely, 2^421121143331 is an apocalyptic number.

421121143331 is a deficient number, since it is larger than the sum of its proper divisors (65717266909).

421121143331 is a wasteful number, since it uses less digits than its factorization.

421121143331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990634.

The product of its digits is 1728, while the sum is 26.

Adding to 421121143331 its reverse (133341121124), we get a palindrome (554462264455).

The spelling of 421121143331 in words is "four hundred twenty-one billion, one hundred twenty-one million, one hundred forty-three thousand, three hundred thirty-one".