1011123132 has 12 divisors (see below), whose sum is σ = 2359287336. Its totient is φ = 337041040.

The previous prime is 1011123103. The next prime is 1011123137. The reversal of 1011123132 is 2313211101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011123137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42130119 + ... + 42130142.

It is an arithmetic number, because the mean of its divisors is an integer number (196607278).

Almost surely, 2^1011123132 is an apocalyptic number.

1011123132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1011123132 is an abundant number, since it is smaller than the sum of its proper divisors (1348164204).

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

1011123132 is a wasteful number, since it uses less digits than its factorization.

1011123132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84260268 (or 84260266 counting only the distinct ones).

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

The square root of 1011123132 is about 31798.1623997362. The cubic root of 1011123132 is about 1003.6940478740.

Adding to 1011123132 its reverse (2313211101), we get a palindrome (3324334233).

The spelling of 1011123132 in words is "one billion, eleven million, one hundred twenty-three thousand, one hundred thirty-two".