20401775113 has 8 divisors (see below), whose sum is σ = 20484472320. Its totient is φ = 20319132960.

The previous prime is 20401775101. The next prime is 20401775129. The reversal of 20401775113 is 31157710402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20401775113 is a prime.

It is a super-2 number, since 2×20401775113² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20401775183) 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, 833181 + ... + 857317.

It is an arithmetic number, because the mean of its divisors is an integer number (2560559040).

Almost surely, 2^20401775113 is an apocalyptic number.

It is an amenable number.

20401775113 is a deficient number, since it is larger than the sum of its proper divisors (82697207).

20401775113 is a wasteful number, since it uses less digits than its factorization.

20401775113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27527.

The product of its (nonzero) digits is 5880, while the sum is 31.

The spelling of 20401775113 in words is "twenty billion, four hundred one million, seven hundred seventy-five thousand, one hundred thirteen".