31230034101320 has 192 divisors, whose sum is σ = 72890299984320. Its totient is φ = 12035544288768.

The previous prime is 31230034101269. The next prime is 31230034101323. The reversal of 31230034101320 is 2310143003213.

It is a super-2 number, since 2×31230034101320² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31230034101323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35368101599 + ... + 35368102481.

It is an arithmetic number, because the mean of its divisors is an integer number (379636979085).

Almost surely, 2^{31230034101320} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31230034101320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36445149992160).

31230034101320 is an abundant number, since it is smaller than the sum of its proper divisors (41660265883000).

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

31230034101320 is an equidigital number, since it uses as much as digits as its factorization.

31230034101320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012 (or 1509 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31230034101320 its reverse (2310143003213), we get a palindrome (33540177104533).

The spelling of 31230034101320 in words is "thirty-one trillion, two hundred thirty billion, thirty-four million, one hundred one thousand, three hundred twenty".