101121007044 has 24 divisors (see below), whose sum is σ = 249828370848. Its totient is φ = 31724237440.

The previous prime is 101121006971. The next prime is 101121007051. The reversal of 101121007044 is 440700121101.

It is a self number, because there is not a number n which added to its sum of digits gives 101121007044.

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, 247845402 + ... + 247845809.

It is an arithmetic number, because the mean of its divisors is an integer number (10409515452).

Almost surely, 2^101121007044 is an apocalyptic number.

It is an amenable number.

101121007044 is an abundant number, since it is smaller than the sum of its proper divisors (148707363804).

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

101121007044 is a wasteful number, since it uses less digits than its factorization.

101121007044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495691235 (or 495691233 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

Adding to 101121007044 its reverse (440700121101), we get a palindrome (541821128145).

The spelling of 101121007044 in words is "one hundred one billion, one hundred twenty-one million, seven thousand, forty-four".