31242220003443 has 8 divisors (see below), whose sum is σ = 41774299836048. Its totient is φ = 20769143419904.

The previous prime is 31242220003439. The next prime is 31242220003447. The reversal of 31242220003443 is 34430002224213.

It is an interprime number because it is at equal distance from previous prime (31242220003439) and next prime (31242220003447).

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

It is a cyclic number.

It is not a de Polignac number, because 31242220003443 - 2² = 31242220003439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31242220003443.

It is not an unprimeable number, because it can be changed into a prime (31242220003447) 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, 14750811030 + ... + 14750813147.

It is an arithmetic number, because the mean of its divisors is an integer number (5221787479506).

Almost surely, 2^{31242220003443} is an apocalyptic number.

31242220003443 is a deficient number, since it is larger than the sum of its proper divisors (10532079832605).

31242220003443 is a wasteful number, since it uses less digits than its factorization.

31242220003443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29501624533.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 31242220003443 its reverse (34430002224213), we get a palindrome (65672222227656).

The spelling of 31242220003443 in words is "thirty-one trillion, two hundred forty-two billion, two hundred twenty million, three thousand, four hundred forty-three".