1011230143 has 32 divisors (see below), whose sum is σ = 1283143680. Its totient is φ = 774113760.

The previous prime is 1011230119. The next prime is 1011230147. The reversal of 1011230143 is 3410321101.

It is not a de Polignac number, because 1011230143 - 2⁹ = 1011229631 is a prime.

It is a super-2 number, since 2×1011230143² = 2045172804223600898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011230147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1144780 + ... + 1145662.

It is an arithmetic number, because the mean of its divisors is an integer number (40098240).

Almost surely, 2^1011230143 is an apocalyptic number.

1011230143 is a deficient number, since it is larger than the sum of its proper divisors (271913537).

1011230143 is a wasteful number, since it uses less digits than its factorization.

1011230143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1011230143 is about 31799.8450153456. The cubic root of 1011230143 is about 1003.7294548755.

Adding to 1011230143 its reverse (3410321101), we get a palindrome (4421551244).

The spelling of 1011230143 in words is "one billion, eleven million, two hundred thirty thousand, one hundred forty-three".