2113202431 has 2 divisors, whose sum is σ = 2113202432. Its totient is φ = 2113202430.

The previous prime is 2113202419. The next prime is 2113202437. The reversal of 2113202431 is 1342023112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2113202431 - 2¹⁹ = 2112678143 is a prime.

It is a super-2 number, since 2×2113202431² = 8931249028768619522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2113202399 and 2113202408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2113202437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056601215 + 1056601216.

It is an arithmetic number, because the mean of its divisors is an integer number (1056601216).

Almost surely, 2^2113202431 is an apocalyptic number.

2113202431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113202431 is an equidigital number, since it uses as much as digits as its factorization.

2113202431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2113202431 is about 45969.5815839126. The cubic root of 2113202431 is about 1283.2571730969.

Adding to 2113202431 its reverse (1342023112), we get a palindrome (3455225543).

The spelling of 2113202431 in words is "two billion, one hundred thirteen million, two hundred two thousand, four hundred thirty-one".