1051111011 has 8 divisors (see below), whose sum is σ = 1401670224. Its totient is φ = 700646240.

The previous prime is 1051111001. The next prime is 1051111021. The reversal of 1051111011 is 1101111501.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1051111001) and next prime (1051111021).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1051111011 - 2⁵ = 1051110979 is a prime.

It is a super-2 number, since 2×1051111011² = 2209668714890884242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051111001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8665 + ... + 46661.

It is an arithmetic number, because the mean of its divisors is an integer number (175208778).

Almost surely, 2^1051111011 is an apocalyptic number.

1051111011 is a deficient number, since it is larger than the sum of its proper divisors (350559213).

1051111011 is an equidigital number, since it uses as much as digits as its factorization.

1051111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47221.

The product of its (nonzero) digits is 5, while the sum is 12.

The square root of 1051111011 is about 32420.8422315029. The cubic root of 1051111011 is about 1016.7547153818.

Adding to 1051111011 its reverse (1101111501), we get a palindrome (2152222512).

The spelling of 1051111011 in words is "one billion, fifty-one million, one hundred eleven thousand, eleven".