1040121031044 has 96 divisors (see below), whose sum is σ = 2517878845440. Its totient is φ = 333831945600.

The previous prime is 1040121031009. The next prime is 1040121031067. The reversal of 1040121031044 is 4401301210401.

It is a super-2 number, since 2×1040121031044² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1040121031044.

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 31 ways as a sum of consecutive naturals, for example, 164494867 + ... + 164501189.

It is an arithmetic number, because the mean of its divisors is an integer number (26227904640).

Almost surely, 2^{1040121031044} is an apocalyptic number.

It is an amenable number.

1040121031044 is an abundant number, since it is smaller than the sum of its proper divisors (1477757814396).

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

1040121031044 is a wasteful number, since it uses less digits than its factorization.

1040121031044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8521 (or 8519 counting only the distinct ones).

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

Adding to 1040121031044 its reverse (4401301210401), we get a palindrome (5441422241445).

The spelling of 1040121031044 in words is "one trillion, forty billion, one hundred twenty-one million, thirty-one thousand, forty-four".