2121441131 has 2 divisors, whose sum is σ = 2121441132. Its totient is φ = 2121441130.

The previous prime is 2121441121. The next prime is 2121441137. The reversal of 2121441131 is 1311441212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121441131 is a prime.

It is a super-2 number, since 2×2121441131² = 9001024944597118322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2121441137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060720565 + 1060720566.

It is an arithmetic number, because the mean of its divisors is an integer number (1060720566).

Almost surely, 2^2121441131 is an apocalyptic number.

2121441131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121441131 is an equidigital number, since it uses as much as digits as its factorization.

2121441131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 20.

The square root of 2121441131 is about 46059.1047568231. The cubic root of 2121441131 is about 1284.9226802231.

Adding to 2121441131 its reverse (1311441212), we get a palindrome (3432882343).

The spelling of 2121441131 in words is "two billion, one hundred twenty-one million, four hundred forty-one thousand, one hundred thirty-one".