1011315206643 has 32 divisors (see below), whose sum is σ = 1542936798720. Its totient is φ = 577187869440.

The previous prime is 1011315206639. The next prime is 1011315206677. The reversal of 1011315206643 is 3466025131101.

It is a happy number.

It is not a de Polignac number, because 1011315206643 - 2² = 1011315206639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011315206623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109244071 + ... + 109253327.

It is an arithmetic number, because the mean of its divisors is an integer number (48216774960).

Almost surely, 2^{1011315206643} is an apocalyptic number.

1011315206643 is a deficient number, since it is larger than the sum of its proper divisors (531621592077).

1011315206643 is a wasteful number, since it uses less digits than its factorization.

1011315206643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15067.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 1011315206643 in words is "one trillion, eleven billion, three hundred fifteen million, two hundred six thousand, six hundred forty-three".