101783543961 has 16 divisors (see below), whose sum is σ = 149514625728. Its totient is φ = 61076232000.

The previous prime is 101783543959. The next prime is 101783543987. The reversal of 101783543961 is 169345387101.

It is not a de Polignac number, because 101783543961 - 2¹ = 101783543959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101783543961.

It is not an unprimeable number, because it can be changed into a prime (101783543261) 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, 15265726 + ... + 15272391.

It is an arithmetic number, because the mean of its divisors is an integer number (9344664108).

Almost surely, 2^101783543961 is an apocalyptic number.

101783543961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101783543961 is a deficient number, since it is larger than the sum of its proper divisors (47731081767).

101783543961 is a wasteful number, since it uses less digits than its factorization.

101783543961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30538232.

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 101783543961 in words is "one hundred one billion, seven hundred eighty-three million, five hundred forty-three thousand, nine hundred sixty-one".