31230242143030 has 48 divisors (see below), whose sum is σ = 65393634266640. Its totient is φ = 10707293596608.

The previous prime is 31230242143013. The next prime is 31230242143049. The reversal of 31230242143030 is 3034124203213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31230242143030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24431941 + ... + 25678399.

It is an arithmetic number, because the mean of its divisors is an integer number (1362367380555).

Almost surely, 2^{31230242143030} is an apocalyptic number.

31230242143030 is an abundant number, since it is smaller than the sum of its proper divisors (34163392123610).

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

31230242143030 is a wasteful number, since it uses less digits than its factorization.

31230242143030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297613 (or 1297606 counting only the distinct ones).

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

Adding to 31230242143030 its reverse (3034124203213), we get a palindrome (34264366346243).

The spelling of 31230242143030 in words is "thirty-one trillion, two hundred thirty billion, two hundred forty-two million, one hundred forty-three thousand, thirty".