11401233144 has 32 divisors (see below), whose sum is σ = 32574952320. Its totient is φ = 3257495136.

The previous prime is 11401233133. The next prime is 11401233149. The reversal of 11401233144 is 44133210411.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11401233149) 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, 33932074 + ... + 33932409.

It is an arithmetic number, because the mean of its divisors is an integer number (1017967260).

Almost surely, 2^11401233144 is an apocalyptic number.

11401233144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11401233144 is an abundant number, since it is smaller than the sum of its proper divisors (21173719176).

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

11401233144 is a wasteful number, since it uses less digits than its factorization.

11401233144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67864499 (or 67864495 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 11401233144 its reverse (44133210411), we get a palindrome (55534443555).

The spelling of 11401233144 in words is "eleven billion, four hundred one million, two hundred thirty-three thousand, one hundred forty-four".