101220430577 has 24 divisors (see below), whose sum is σ = 124170596640. Its totient is φ = 82043357760.

The previous prime is 101220430573. The next prime is 101220430579. The reversal of 101220430577 is 775034022101.

It is not a de Polignac number, because 101220430577 - 2² = 101220430573 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101220430573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 409877 + ... + 608637.

It is an arithmetic number, because the mean of its divisors is an integer number (5173774860).

Almost surely, 2^101220430577 is an apocalyptic number.

It is an amenable number.

101220430577 is a deficient number, since it is larger than the sum of its proper divisors (22950166063).

101220430577 is a wasteful number, since it uses less digits than its factorization.

101220430577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199341 (or 199334 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

Adding to 101220430577 its reverse (775034022101), we get a palindrome (876254452678).

The spelling of 101220430577 in words is "one hundred one billion, two hundred twenty million, four hundred thirty thousand, five hundred seventy-seven".