1051165123 has 2 divisors, whose sum is σ = 1051165124. Its totient is φ = 1051165122.

The previous prime is 1051165099. The next prime is 1051165147. The reversal of 1051165123 is 3215611501.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1051165099) and next prime (1051165147).

It is an emirp because it is prime and its reverse (3215611501) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051165123 is a prime.

It is a super-2 number, since 2×1051165123² = 2209896231623210258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1051165183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525582561 + 525582562.

It is an arithmetic number, because the mean of its divisors is an integer number (525582562).

Almost surely, 2^1051165123 is an apocalyptic number.

1051165123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051165123 is an equidigital number, since it uses as much as digits as its factorization.

1051165123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 1051165123 is about 32421.6767456589. The cubic root of 1051165123 is about 1016.7721628530.

Adding to 1051165123 its reverse (3215611501), we get a palindrome (4266776624).

The spelling of 1051165123 in words is "one billion, fifty-one million, one hundred sixty-five thousand, one hundred twenty-three".