1010551121 has 4 divisors (see below), whose sum is σ = 1019995632. Its totient is φ = 1001106612.

The previous prime is 1010551093. The next prime is 1010551133. The reversal of 1010551121 is 1211550101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1211550101 = 17 ⋅71267653.

It is a cyclic number.

It is not a de Polignac number, because 1010551121 - 2¹⁴ = 1010534737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1010551121.

It is not an unprimeable number, because it can be changed into a prime (1010551181) 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, 4722095 + ... + 4722308.

It is an arithmetic number, because the mean of its divisors is an integer number (254998908).

Almost surely, 2^1010551121 is an apocalyptic number.

It is an amenable number.

1010551121 is a deficient number, since it is larger than the sum of its proper divisors (9444511).

1010551121 is an equidigital number, since it uses as much as digits as its factorization.

1010551121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9444510.

The product of its (nonzero) digits is 50, while the sum is 17.

The square root of 1010551121 is about 31789.1667239014. The cubic root of 1010551121 is about 1003.5047427617.

The spelling of 1010551121 in words is "one billion, ten million, five hundred fifty-one thousand, one hundred twenty-one".