1011311043 has 32 divisors (see below), whose sum is σ = 1458428160. Its totient is φ = 621250560.

The previous prime is 1011310981. The next prime is 1011311057. The reversal of 1011311043 is 3401131101.

1011311043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1011311043 - 2¹⁰ = 1011310019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011311083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1502355 + ... + 1503027.

It is an arithmetic number, because the mean of its divisors is an integer number (45575880).

Almost surely, 2^1011311043 is an apocalyptic number.

1011311043 is a deficient number, since it is larger than the sum of its proper divisors (447117117).

1011311043 is a wasteful number, since it uses less digits than its factorization.

1011311043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1011311043 is about 31801.1170086838. The cubic root of 1011311043 is about 1003.7562208062.

Adding to 1011311043 its reverse (3401131101), we get a palindrome (4412442144).

The spelling of 1011311043 in words is "one billion, eleven million, three hundred eleven thousand, forty-three".