20311055001 has 12 divisors (see below), whose sum is σ = 29413615140. Its totient is φ = 13505892000.

The previous prime is 20311054979. The next prime is 20311055057. The reversal of 20311055001 is 10055011302.

20311055001 is a `hidden beast` number, since 2 + 0 + 3 + 110 + 550 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12750926400 + 7560128601 = 112920^2 + 86949^2 .

It is not a de Polignac number, because 20311055001 - 2¹³ = 20311046809 is a prime.

It is a super-2 number, since 2×20311055001² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20311015001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2897250 + ... + 2904251.

It is an arithmetic number, because the mean of its divisors is an integer number (2451134595).

Almost surely, 2^20311055001 is an apocalyptic number.

It is an amenable number.

20311055001 is a deficient number, since it is larger than the sum of its proper divisors (9102560139).

20311055001 is a wasteful number, since it uses less digits than its factorization.

20311055001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5801896 (or 5801893 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

Adding to 20311055001 its reverse (10055011302), we get a palindrome (30366066303).

The spelling of 20311055001 in words is "twenty billion, three hundred eleven million, fifty-five thousand, one".