31203043230 has 32 divisors (see below), whose sum is σ = 74938318848. Its totient is φ = 8315143200.

The previous prime is 31203043229. The next prime is 31203043243. The reversal of 31203043230 is 3234030213.

It is a junction number, because it is equal to n+sod(n) for n = 31203043197 and 31203043206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309406 + ... + 397665.

It is an arithmetic number, because the mean of its divisors is an integer number (2341822464).

Almost surely, 2^31203043230 is an apocalyptic number.

31203043230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31203043230 is an abundant number, since it is smaller than the sum of its proper divisors (43735275618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31203043230 is a wasteful number, since it uses less digits than its factorization.

31203043230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708552.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 31203043230 its reverse (3234030213), we get a palindrome (34437073443).

The spelling of 31203043230 in words is "thirty-one billion, two hundred three million, forty-three thousand, two hundred thirty".