1051011121 has 2 divisors, whose sum is σ = 1051011122. Its totient is φ = 1051011120.

The previous prime is 1051011103. The next prime is 1051011139. The reversal of 1051011121 is 1211101501.

It is a balanced prime because it is at equal distance from previous prime (1051011103) and next prime (1051011139).

It can be written as a sum of positive squares in only one way, i.e., 1008761121 + 42250000 = 31761^2 + 6500^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051011121 - 2¹³ = 1051002929 is a prime.

It is a super-2 number, since 2×1051011121² = 2209248752931353282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1051011161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525505560 + 525505561.

It is an arithmetic number, because the mean of its divisors is an integer number (525505561).

Almost surely, 2^1051011121 is an apocalyptic number.

It is an amenable number.

1051011121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051011121 is an equidigital number, since it uses as much as digits as its factorization.

1051011121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10, while the sum is 13.

The square root of 1051011121 is about 32419.3016735401. The cubic root of 1051011121 is about 1016.7225060196.

Adding to 1051011121 its reverse (1211101501), we get a palindrome (2262112622).

The spelling of 1051011121 in words is "one billion, fifty-one million, eleven thousand, one hundred twenty-one".