1035721373042 has 8 divisors (see below), whose sum is σ = 1553595823836. Its totient is φ = 517856098432.

The previous prime is 1035721373041. The next prime is 1035721373051. The reversal of 1035721373042 is 2403731275301.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 891100128361 + 144621244681 = 943981^2 + 380291^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×1035721373042³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1035721372987 and 1035721373005.

It is not an unprimeable number, because it can be changed into a prime (1035721373041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2004563 + ... + 2467734.

Almost surely, 2^{1035721373042} is an apocalyptic number.

1035721373042 is a deficient number, since it is larger than the sum of its proper divisors (517874450794).

1035721373042 is a wasteful number, since it uses less digits than its factorization.

1035721373042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4588092.

The product of its (nonzero) digits is 105840, while the sum is 38.

The spelling of 1035721373042 in words is "one trillion, thirty-five billion, seven hundred twenty-one million, three hundred seventy-three thousand, forty-two".