2031411521 has 2 divisors, whose sum is σ = 2031411522. Its totient is φ = 2031411520.

The previous prime is 2031411511. The next prime is 2031411541. The reversal of 2031411521 is 1251141302.

It is an a-pointer prime, because the next prime (2031411541) can be obtained adding 2031411521 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1053911296 + 977500225 = 32464^2 + 31265^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031411521 - 2⁶ = 2031411457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2031411493 and 2031411502.

It is not a weakly prime, because it can be changed into another prime (2031411511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015705760 + 1015705761.

It is an arithmetic number, because the mean of its divisors is an integer number (1015705761).

Almost surely, 2^2031411521 is an apocalyptic number.

It is an amenable number.

2031411521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031411521 is an equidigital number, since it uses as much as digits as its factorization.

2031411521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2031411521 is about 45071.1828222868. The cubic root of 2031411521 is about 1266.4828224024.

Adding to 2031411521 its reverse (1251141302), we get a palindrome (3282552823).

The spelling of 2031411521 in words is "two billion, thirty-one million, four hundred eleven thousand, five hundred twenty-one".