1051451111 has 2 divisors, whose sum is σ = 1051451112. Its totient is φ = 1051451110.

The previous prime is 1051451099. The next prime is 1051451113. The reversal of 1051451111 is 1111541501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1051451111 - 2¹⁰ = 1051450087 is a prime.

It is a super-3 number, since 3×1051451111³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 1051451113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051451113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525725555 + 525725556.

It is an arithmetic number, because the mean of its divisors is an integer number (525725556).

Almost surely, 2^1051451111 is an apocalyptic number.

1051451111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051451111 is an equidigital number, since it uses as much as digits as its factorization.

1051451111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100, while the sum is 20.

The square root of 1051451111 is about 32426.0868900335. The cubic root of 1051451111 is about 1016.8643647548.

Adding to 1051451111 its reverse (1111541501), we get a palindrome (2162992612).

The spelling of 1051451111 in words is "one billion, fifty-one million, four hundred fifty-one thousand, one hundred eleven".