2011432140 has 72 divisors (see below), whose sum is σ = 6106813440. Its totient is φ = 535901184.

The previous prime is 2011432127. The next prime is 2011432151. The reversal of 2011432140 is 412341102.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 225852 + ... + 234588.

Almost surely, 2^2011432140 is an apocalyptic number.

2011432140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011432140 is an abundant number, since it is smaller than the sum of its proper divisors (4095381300).

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

2011432140 is a wasteful number, since it uses less digits than its factorization.

2011432140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10031 (or 10026 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2011432140 is about 44848.9926308273. The cubic root of 2011432140 is about 1262.3170893395.

Adding to 2011432140 its reverse (412341102), we get a palindrome (2423773242).

It can be divided in two parts, 201 and 1432140, that added together give a palindrome (1432341).

The spelling of 2011432140 in words is "two billion, eleven million, four hundred thirty-two thousand, one hundred forty".