1011243132 has 18 divisors (see below), whose sum is σ = 2556198008. Its totient is φ = 337081032.

The previous prime is 1011243119. The next prime is 1011243133. The reversal of 1011243132 is 2313421101.

1011243132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1011243132² = 2045225344034338848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011243133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14045008 + ... + 14045079.

Almost surely, 2^1011243132 is an apocalyptic number.

1011243132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1011243132 is an abundant number, since it is smaller than the sum of its proper divisors (1544954876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011243132 is a wasteful number, since it uses less digits than its factorization.

1011243132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28090097 (or 28090092 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1011243132 is about 31800.0492452449. The cubic root of 1011243132 is about 1003.7337524090.

Adding to 1011243132 its reverse (2313421101), we get a palindrome (3324664233).

The spelling of 1011243132 in words is "one billion, eleven million, two hundred forty-three thousand, one hundred thirty-two".