201101432240 has 40 divisors (see below), whose sum is σ = 468036659808. Its totient is φ = 80358709760.

The previous prime is 201101432237. The next prime is 201101432249. The reversal of 201101432240 is 42234101102.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×201101432240² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (201101432249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1199981 + ... + 1357260.

Almost surely, 2^201101432240 is an apocalyptic number.

201101432240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201101432240 is an abundant number, since it is smaller than the sum of its proper divisors (266935227568).

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

201101432240 is a wasteful number, since it uses less digits than its factorization.

201101432240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2558237 (or 2558231 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 201101432240 its reverse (42234101102), we get a palindrome (243335533342).

The spelling of 201101432240 in words is "two hundred one billion, one hundred one million, four hundred thirty-two thousand, two hundred forty".