421203131033 has 16 divisors (see below), whose sum is σ = 425696647056. Its totient is φ = 416732636160.

The previous prime is 421203131029. The next prime is 421203131057. The reversal of 421203131033 is 330131302124.

It can be written as a sum of positive squares in 8 ways, for example, as 162257507344 + 258945623689 = 402812^2 + 508867^2 .

It is a cyclic number.

It is not a de Polignac number, because 421203131033 - 2² = 421203131029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (421209131033) 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, 54323885 + ... + 54331637.

It is an arithmetic number, because the mean of its divisors is an integer number (26606040441).

Almost surely, 2^421203131033 is an apocalyptic number.

It is an amenable number.

421203131033 is a deficient number, since it is larger than the sum of its proper divisors (4493516023).

421203131033 is a wasteful number, since it uses less digits than its factorization.

421203131033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9164.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 421203131033 its reverse (330131302124), we get a palindrome (751334433157).

The spelling of 421203131033 in words is "four hundred twenty-one billion, two hundred three million, one hundred thirty-one thousand, thirty-three".