1023432011 has 16 divisors (see below), whose sum is σ = 1281147840. Its totient is φ = 797153280.

The previous prime is 1023432001. The next prime is 1023432013. The reversal of 1023432011 is 1102343201.

It is not a de Polignac number, because 1023432011 - 2⁶ = 1023431947 is a prime.

It is a super-2 number, since 2×1023432011² = 2094826162279008242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (1023432013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144830 + ... + 151731.

It is an arithmetic number, because the mean of its divisors is an integer number (80071740).

Almost surely, 2^1023432011 is an apocalyptic number.

1023432011 is a deficient number, since it is larger than the sum of its proper divisors (257715829).

1023432011 is a wasteful number, since it uses less digits than its factorization.

1023432011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296614.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1023432011 is about 31991.1239408683. The cubic root of 1023432011 is about 1007.7504457360.

Adding to 1023432011 its reverse (1102343201), we get a palindrome (2125775212).

The spelling of 1023432011 in words is "one billion, twenty-three million, four hundred thirty-two thousand, eleven".