31230231230 has 32 divisors (see below), whose sum is σ = 61498618848. Its totient is φ = 11324262400.

The previous prime is 31230231187. The next prime is 31230231233. The reversal of 31230231230 is 3213203213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31230231233) 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, 363311 + ... + 440970.

It is an arithmetic number, because the mean of its divisors is an integer number (1921831839).

Almost surely, 2^31230231230 is an apocalyptic number.

31230231230 is a deficient number, since it is larger than the sum of its proper divisors (30268387618).

31230231230 is a wasteful number, since it uses less digits than its factorization.

31230231230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804652.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31230231230 its reverse (3213203213), we get a palindrome (34443434443).

The spelling of 31230231230 in words is "thirty-one billion, two hundred thirty million, two hundred thirty-one thousand, two hundred thirty".