31024150440161 has 2 divisors, whose sum is σ = 31024150440162. Its totient is φ = 31024150440160.

The previous prime is 31024150440083. The next prime is 31024150440197. The reversal of 31024150440161 is 16104405142013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20584505110225 + 10439645329936 = 4537015^2 + 3231044^2 .

It is an emirp because it is prime and its reverse (16104405142013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31024150440161 - 2³⁴ = 31006970570977 is a prime.

It is not a weakly prime, because it can be changed into another prime (31024150440061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15512075220080 + 15512075220081.

It is an arithmetic number, because the mean of its divisors is an integer number (15512075220081).

Almost surely, 2^{31024150440161} is an apocalyptic number.

It is an amenable number.

31024150440161 is a deficient number, since it is larger than the sum of its proper divisors (1).

31024150440161 is an equidigital number, since it uses as much as digits as its factorization.

31024150440161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 31024150440161 its reverse (16104405142013), we get a palindrome (47128555582174).

The spelling of 31024150440161 in words is "thirty-one trillion, twenty-four billion, one hundred fifty million, four hundred forty thousand, one hundred sixty-one".