20030100311 has 4 divisors (see below), whose sum is σ = 21570877272. Its totient is φ = 18489323352.

The previous prime is 20030100301. The next prime is 20030100317. The reversal of 20030100311 is 11300103002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20030100311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20030100292 and 20030100301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030100317) 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, 770388461 + ... + 770388486.

It is an arithmetic number, because the mean of its divisors is an integer number (5392719318).

Almost surely, 2^20030100311 is an apocalyptic number.

20030100311 is a deficient number, since it is larger than the sum of its proper divisors (1540776961).

20030100311 is a wasteful number, since it uses less digits than its factorization.

20030100311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540776960.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 20030100311 its reverse (11300103002), we get a palindrome (31330203313).

The spelling of 20030100311 in words is "twenty billion, thirty million, one hundred thousand, three hundred eleven".