101210413561 has 4 divisors (see below), whose sum is σ = 101212100352. Its totient is φ = 101208726772.

The previous prime is 101210413543. The next prime is 101210413567. The reversal of 101210413561 is 165314012101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101210413561 - 2¹¹ = 101210411513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101210413567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749941 + ... + 874546.

It is an arithmetic number, because the mean of its divisors is an integer number (25303025088).

Almost surely, 2^101210413561 is an apocalyptic number.

It is an amenable number.

101210413561 is a deficient number, since it is larger than the sum of its proper divisors (1686791).

101210413561 is an equidigital number, since it uses as much as digits as its factorization.

101210413561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686790.

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 101210413561 its reverse (165314012101), we get a palindrome (266524425662).

The spelling of 101210413561 in words is "one hundred one billion, two hundred ten million, four hundred thirteen thousand, five hundred sixty-one".