31442002441 has 4 divisors (see below), whose sum is σ = 31466510352. Its totient is φ = 31417494532.

The previous prime is 31442002429. The next prime is 31442002447. The reversal of 31442002441 is 14420024413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14420024413 = 73 ⋅197534581.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31442002441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31442002447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12252031 + ... + 12254596.

It is an arithmetic number, because the mean of its divisors is an integer number (7866627588).

Almost surely, 2^31442002441 is an apocalyptic number.

It is an amenable number.

31442002441 is a deficient number, since it is larger than the sum of its proper divisors (24507911).

31442002441 is a wasteful number, since it uses less digits than its factorization.

31442002441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24507910.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 31442002441 its reverse (14420024413), we get a palindrome (45862026854).

The spelling of 31442002441 in words is "thirty-one billion, four hundred forty-two million, two thousand, four hundred forty-one".