101043121440 has 48 divisors (see below), whose sum is σ = 318285834048. Its totient is φ = 26944832256.

The previous prime is 101043121423. The next prime is 101043121453. The reversal of 101043121440 is 44121340101.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105252772 + ... + 105253731.

It is an arithmetic number, because the mean of its divisors is an integer number (6630954876).

Almost surely, 2^101043121440 is an apocalyptic number.

101043121440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101043121440 is an abundant number, since it is smaller than the sum of its proper divisors (217242712608).

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

101043121440 is a wasteful number, since it uses less digits than its factorization.

101043121440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210506521 (or 210506513 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 101043121440 its reverse (44121340101), we get a palindrome (145164461541).

The spelling of 101043121440 in words is "one hundred one billion, forty-three million, one hundred twenty-one thousand, four hundred forty".