2045211131 has 2 divisors, whose sum is σ = 2045211132. Its totient is φ = 2045211130.

The previous prime is 2045211127. The next prime is 2045211229. The reversal of 2045211131 is 1311125402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2045211131 - 2² = 2045211127 is a prime.

It is a super-2 number, since 2×2045211131² = 8365777140732598322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2045211121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022605565 + 1022605566.

It is an arithmetic number, because the mean of its divisors is an integer number (1022605566).

Almost surely, 2^2045211131 is an apocalyptic number.

2045211131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045211131 is an equidigital number, since it uses as much as digits as its factorization.

2045211131 is an evil number, because the sum of its binary digits is even.

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

The square root of 2045211131 is about 45224.0105585517. The cubic root of 2045211131 is about 1269.3441404518.

Adding to 2045211131 its reverse (1311125402), we get a palindrome (3356336533).

The spelling of 2045211131 in words is "two billion, forty-five million, two hundred eleven thousand, one hundred thirty-one".