1121127151 has 4 divisors (see below), whose sum is σ = 1121383152. Its totient is φ = 1120871152.

The previous prime is 1121127103. The next prime is 1121127173. The reversal of 1121127151 is 1517211211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1517211211 = 173 ⋅8770007.

It is a cyclic number.

It is not a de Polignac number, because 1121127151 - 2⁷ = 1121127023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121127191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121315 + ... + 130228.

It is an arithmetic number, because the mean of its divisors is an integer number (280345788).

Almost surely, 2^1121127151 is an apocalyptic number.

1121127151 is a deficient number, since it is larger than the sum of its proper divisors (256001).

1121127151 is an equidigital number, since it uses as much as digits as its factorization.

1121127151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256000.

The product of its digits is 140, while the sum is 22.

The square root of 1121127151 is about 33483.2368656317. The cubic root of 1121127151 is about 1038.8470800519.

Adding to 1121127151 its reverse (1517211211), we get a palindrome (2638338362).

The spelling of 1121127151 in words is "one billion, one hundred twenty-one million, one hundred twenty-seven thousand, one hundred fifty-one".