31230243242430 has 64 divisors (see below), whose sum is σ = 75460014498816. Its totient is φ = 8271699840000.

The previous prime is 31230243242417. The next prime is 31230243242431. The reversal of 31230243242430 is 3424234203213.

It is a junction number, because it is equal to n+sod(n) for n = 31230243242391 and 31230243242400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31230243242431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30623950 + ... + 31627310.

It is an arithmetic number, because the mean of its divisors is an integer number (1179062726544).

Almost surely, 2^{31230243242430} is an apocalyptic number.

31230243242430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31230243242430 is an abundant number, since it is smaller than the sum of its proper divisors (44229771256386).

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

31230243242430 is a wasteful number, since it uses less digits than its factorization.

31230243242430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010393.

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 31230243242430 its reverse (3424234203213), we get a palindrome (34654477445643).

The spelling of 31230243242430 in words is "thirty-one trillion, two hundred thirty billion, two hundred forty-three million, two hundred forty-two thousand, four hundred thirty".