31421121224030 has 16 divisors (see below), whose sum is σ = 56562616263744. Its totient is φ = 12567426698400.

The previous prime is 31421121224029. The next prime is 31421121224047. The reversal of 31421121224030 is 3042212112413.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127594742 + ... + 127840761.

It is an arithmetic number, because the mean of its divisors is an integer number (3535163516484).

Almost surely, 2^{31421121224030} is an apocalyptic number.

31421121224030 is a deficient number, since it is larger than the sum of its proper divisors (25141495039714).

31421121224030 is a wasteful number, since it uses less digits than its factorization.

31421121224030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255447811.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 31421121224030 its reverse (3042212112413), we get a palindrome (34463333336443).

The spelling of 31421121224030 in words is "thirty-one trillion, four hundred twenty-one billion, one hundred twenty-one million, two hundred twenty-four thousand, thirty".