31201242430 has 16 divisors (see below), whose sum is σ = 56566283760. Its totient is φ = 12390708672.

The previous prime is 31201242379. The next prime is 31201242439. The reversal of 31201242430 is 3424210213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31201242439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11222079 + ... + 11224858.

It is an arithmetic number, because the mean of its divisors is an integer number (3535392735).

Almost surely, 2^31201242430 is an apocalyptic number.

31201242430 is a deficient number, since it is larger than the sum of its proper divisors (25365041330).

31201242430 is a wasteful number, since it uses less digits than its factorization.

31201242430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22447083.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31201242430 its reverse (3424210213), we get a palindrome (34625452643).

The spelling of 31201242430 in words is "thirty-one billion, two hundred one million, two hundred forty-two thousand, four hundred thirty".