31230334021420 has 24 divisors (see below), whose sum is σ = 67356233918064. Its totient is φ = 12154508375616.

The previous prime is 31230334021373. The next prime is 31230334021429. The reversal of 31230334021420 is 2412043303213.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31230334021429) 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, 21101576302 + ... + 21101577781.

It is an arithmetic number, because the mean of its divisors is an integer number (2806509746586).

Almost surely, 2^{31230334021420} is an apocalyptic number.

It is an amenable number.

31230334021420 is an abundant number, since it is smaller than the sum of its proper divisors (36125899896644).

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

31230334021420 is a wasteful number, since it uses less digits than its factorization.

31230334021420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42203154129 (or 42203154127 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 31230334021420 its reverse (2412043303213), we get a palindrome (33642377324633).

The spelling of 31230334021420 in words is "thirty-one trillion, two hundred thirty billion, three hundred thirty-four million, twenty-one thousand, four hundred twenty".