11401212040 has 32 divisors (see below), whose sum is σ = 25660800000. Its totient is φ = 4559049664.

The previous prime is 11401211977. The next prime is 11401212041. The reversal of 11401212040 is 4021210411.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11401212041) 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 7 ways as a sum of consecutive naturals, for example, 88761 + ... + 175159.

It is an arithmetic number, because the mean of its divisors is an integer number (801900000).

Almost surely, 2^11401212040 is an apocalyptic number.

11401212040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11401212040 is an abundant number, since it is smaller than the sum of its proper divisors (14259587960).

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

11401212040 is a wasteful number, since it uses less digits than its factorization.

11401212040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89709 (or 89705 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11401212040 its reverse (4021210411), we get a palindrome (15422422451).

The spelling of 11401212040 in words is "eleven billion, four hundred one million, two hundred twelve thousand, forty".