31220413023341 has 4 divisors (see below), whose sum is σ = 31248363259932. Its totient is φ = 31192462786752.

The previous prime is 31220413023311. The next prime is 31220413023383. The reversal of 31220413023341 is 14332031402213.

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

It can be written as a sum of positive squares in 2 ways, for example, as 575442099241 + 30644970924100 = 758579^2 + 5535790^2 .

It is a cyclic number.

It is not a de Polignac number, because 31220413023341 - 2¹⁰ = 31220413022317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31220413023311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13975116620 + ... + 13975118853.

It is an arithmetic number, because the mean of its divisors is an integer number (7812090814983).

Almost surely, 2^{31220413023341} is an apocalyptic number.

It is an amenable number.

31220413023341 is a deficient number, since it is larger than the sum of its proper divisors (27950236591).

31220413023341 is a wasteful number, since it uses less digits than its factorization.

31220413023341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27950236590.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 31220413023341 its reverse (14332031402213), we get a palindrome (45552444425554).

The spelling of 31220413023341 in words is "thirty-one trillion, two hundred twenty billion, four hundred thirteen million, twenty-three thousand, three hundred forty-one".