31320230421142 has 8 divisors (see below), whose sum is σ = 50594218372656. Its totient is φ = 14455490963592.

The previous prime is 31320230421127. The next prime is 31320230421143. The reversal of 31320230421142 is 24112403202313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 31320230421142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31320230421143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602312123458 + ... + 602312123509.

It is an arithmetic number, because the mean of its divisors is an integer number (6324277296582).

Almost surely, 2^{31320230421142} is an apocalyptic number.

31320230421142 is a deficient number, since it is larger than the sum of its proper divisors (19273987951514).

31320230421142 is a wasteful number, since it uses less digits than its factorization.

31320230421142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204624246982.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31320230421142 its reverse (24112403202313), we get a palindrome (55432633623455).

The spelling of 31320230421142 in words is "thirty-one trillion, three hundred twenty billion, two hundred thirty million, four hundred twenty-one thousand, one hundred forty-two".