101243947790 has 16 divisors (see below), whose sum is σ = 182415541968. Its totient is φ = 40458371136.

The previous prime is 101243947697. The next prime is 101243947801. The reversal of 101243947790 is 97749342101.

It is a congruent number.

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, 4890152 + ... + 4910811.

It is an arithmetic number, because the mean of its divisors is an integer number (11400971373).

Almost surely, 2^101243947790 is an apocalyptic number.

101243947790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101243947790 is a deficient number, since it is larger than the sum of its proper divisors (81171594178).

101243947790 is a wasteful number, since it uses less digits than its factorization.

101243947790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9802003.

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 101243947790 in words is "one hundred one billion, two hundred forty-three million, nine hundred forty-seven thousand, seven hundred ninety".