202113031 has 2 divisors, whose sum is σ = 202113032. Its totient is φ = 202113030.

The previous prime is 202113001. The next prime is 202113053. The reversal of 202113031 is 130311202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202113031 - 2¹⁹ = 201588743 is a prime.

It is a super-2 number, since 2×202113031² = 81699354600013922, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202113001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101056515 + 101056516.

It is an arithmetic number, because the mean of its divisors is an integer number (101056516).

Almost surely, 2^202113031 is an apocalyptic number.

202113031 is a deficient number, since it is larger than the sum of its proper divisors (1).

202113031 is an equidigital number, since it uses as much as digits as its factorization.

202113031 is an odious number, because the sum of its binary digits is odd.

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

The square root of 202113031 is about 14216.6462641510. The cubic root of 202113031 is about 586.8558502660.

Adding to 202113031 its reverse (130311202), we get a palindrome (332424233).

The spelling of 202113031 in words is "two hundred two million, one hundred thirteen thousand, thirty-one".