21161002145035 has 8 divisors (see below), whose sum is σ = 25407787996656. Its totient is φ = 16919078100960.

The previous prime is 21161002145027. The next prime is 21161002145039. The reversal of 21161002145035 is 53054120016112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21161002145035 - 2³ = 21161002145027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21161002144988 and 21161002145006.

It is not an unprimeable number, because it can be changed into a prime (21161002145039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1215442309 + ... + 1215459718.

It is an arithmetic number, because the mean of its divisors is an integer number (3175973499582).

Almost surely, 2^{21161002145035} is an apocalyptic number.

21161002145035 is a deficient number, since it is larger than the sum of its proper divisors (4246785851621).

21161002145035 is a wasteful number, since it uses less digits than its factorization.

21161002145035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430903773.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 21161002145035 in words is "twenty-one trillion, one hundred sixty-one billion, two million, one hundred forty-five thousand, thirty-five".