202030100311 has 4 divisors (see below), whose sum is σ = 217570877272. Its totient is φ = 186489323352.

The previous prime is 202030100309. The next prime is 202030100339. The reversal of 202030100311 is 113001030202.

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

It is a cyclic number.

It is not a de Polignac number, because 202030100311 - 2¹ = 202030100309 is a prime.

It is a super-2 number, since 2×202030100311² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 15540776947 = 202030100311 / (2 + 0 + 2 + 0 + 3 + 0 + 1 + 0 + 0 + 3 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202030100291 and 202030100300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202030100381) 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, 7770388461 + ... + 7770388486.

It is an arithmetic number, because the mean of its divisors is an integer number (54392719318).

Almost surely, 2^202030100311 is an apocalyptic number.

202030100311 is a deficient number, since it is larger than the sum of its proper divisors (15540776961).

202030100311 is a wasteful number, since it uses less digits than its factorization.

202030100311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15540776960.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 202030100311 its reverse (113001030202), we get a palindrome (315031130513).

The spelling of 202030100311 in words is "two hundred two billion, thirty million, one hundred thousand, three hundred eleven".