611115620861203 has 2 divisors, whose sum is σ = 611115620861204. Its totient is φ = 611115620861202.

The previous prime is 611115620861201. The next prime is 611115620861237. The reversal of 611115620861203 is 302168026511116.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 611115620861203 - 2¹ = 611115620861201 is a prime.

It is a super-2 number, since 2×611115620861203² (a number of 30 digits) contains 22 as substring.

Together with 611115620861201, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 611115620861203.

It is not a weakly prime, because it can be changed into another prime (611115620861201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305557810430601 + 305557810430602.

It is an arithmetic number, because the mean of its divisors is an integer number (305557810430602).

Almost surely, 2^{611115620861203} is an apocalyptic number.

611115620861203 is a deficient number, since it is larger than the sum of its proper divisors (1).

611115620861203 is an equidigital number, since it uses as much as digits as its factorization.

611115620861203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 611115620861203 in words is "six hundred eleven trillion, one hundred fifteen billion, six hundred twenty million, eight hundred sixty-one thousand, two hundred three".