203230421031 has 32 divisors (see below), whose sum is σ = 311345383680. Its totient is φ = 116620128000.

The previous prime is 203230421029. The next prime is 203230421057. The reversal of 203230421031 is 130124032302.

It is not a de Polignac number, because 203230421031 - 2¹ = 203230421029 is a prime.

It is a super-2 number, since 2×203230421031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203230420989 and 203230421007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203230428031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1006681 + ... + 1191581.

It is an arithmetic number, because the mean of its divisors is an integer number (9729543240).

Almost surely, 2^203230421031 is an apocalyptic number.

203230421031 is a deficient number, since it is larger than the sum of its proper divisors (108114962649).

203230421031 is a wasteful number, since it uses less digits than its factorization.

203230421031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186687.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 203230421031 its reverse (130124032302), we get a palindrome (333354453333).

The spelling of 203230421031 in words is "two hundred three billion, two hundred thirty million, four hundred twenty-one thousand, thirty-one".