100060009961 has 4 divisors (see below), whose sum is σ = 100196518212. Its totient is φ = 99923501712.

The previous prime is 100060009957. The next prime is 100060009969. The reversal of 100060009961 is 169900060001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 92252520361 + 7807489600 = 303731^2 + 88360^2 .

It is a cyclic number.

It is not a de Polignac number, because 100060009961 - 2² = 100060009957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100060009969) 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, 68253026 + ... + 68254491.

It is an arithmetic number, because the mean of its divisors is an integer number (25049129553).

Almost surely, 2^100060009961 is an apocalyptic number.

It is an amenable number.

100060009961 is a deficient number, since it is larger than the sum of its proper divisors (136508251).

100060009961 is an equidigital number, since it uses as much as digits as its factorization.

100060009961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136508250.

The product of its (nonzero) digits is 2916, while the sum is 32.

Adding to 100060009961 its reverse (169900060001), we get a palindrome (269960069962).

It can be divided in two parts, 100060009 and 961, that multiplied together give a square (96157668649 = 310093²).

The spelling of 100060009961 in words is "one hundred billion, sixty million, nine thousand, nine hundred sixty-one".