1012155635203 has 16 divisors (see below), whose sum is σ = 1024928100000. Its totient is φ = 999415498752.

The previous prime is 1012155635189. The next prime is 1012155635213. The reversal of 1012155635203 is 3025365512101.

1012155635203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012155635203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012155635213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331961623 + ... + 331964671.

It is an arithmetic number, because the mean of its divisors is an integer number (64058006250).

Almost surely, 2^{1012155635203} is an apocalyptic number.

1012155635203 is a deficient number, since it is larger than the sum of its proper divisors (12772464797).

1012155635203 is a wasteful number, since it uses less digits than its factorization.

1012155635203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7014.

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 1012155635203 in words is "one trillion, twelve billion, one hundred fifty-five million, six hundred thirty-five thousand, two hundred three".