31422042445511 has 4 divisors (see below), whose sum is σ = 32014911170952. Its totient is φ = 30829173720072.

The previous prime is 31422042445481. The next prime is 31422042445513. The reversal of 31422042445511 is 11554424022413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31422042445511 - 2²² = 31422038251207 is a prime.

It is a super-2 number, since 2×31422042445511² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422042445513) 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, 296434362641 + ... + 296434362746.

It is an arithmetic number, because the mean of its divisors is an integer number (8003727792738).

Almost surely, 2^{31422042445511} is an apocalyptic number.

31422042445511 is a deficient number, since it is larger than the sum of its proper divisors (592868725441).

31422042445511 is an equidigital number, since it uses as much as digits as its factorization.

31422042445511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592868725440.

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 31422042445511 its reverse (11554424022413), we get a palindrome (42976466467924).

The spelling of 31422042445511 in words is "thirty-one trillion, four hundred twenty-two billion, forty-two million, four hundred forty-five thousand, five hundred eleven".