1011125651 has 2 divisors, whose sum is σ = 1011125652. Its totient is φ = 1011125650.

The previous prime is 1011125611. The next prime is 1011125653. The reversal of 1011125651 is 1565211101.

It is a strong prime.

It is an emirp because it is prime and its reverse (1565211101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1011125651 - 2⁶ = 1011125587 is a prime.

It is a super-2 number, since 2×1011125651² = 2044750164220347602, which contains 22 as substring.

Together with 1011125653, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1011125653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505562825 + 505562826.

It is an arithmetic number, because the mean of its divisors is an integer number (505562826).

Almost surely, 2^1011125651 is an apocalyptic number.

1011125651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011125651 is an equidigital number, since it uses as much as digits as its factorization.

1011125651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 23.

The square root of 1011125651 is about 31798.2020089187. The cubic root of 1011125651 is about 1003.6948813706.

Adding to 1011125651 its reverse (1565211101), we get a palindrome (2576336752).

The spelling of 1011125651 in words is "one billion, eleven million, one hundred twenty-five thousand, six hundred fifty-one".