1103139997 has 2 divisors, whose sum is σ = 1103139998. Its totient is φ = 1103139996.

The previous prime is 1103139971. The next prime is 1103140009. The reversal of 1103139997 is 7999313011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 646634041 + 456505956 = 25429^2 + 21366^2 .

It is an emirp because it is prime and its reverse (7999313011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1103139997 - 2¹¹ = 1103137949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103139967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551569998 + 551569999.

It is an arithmetic number, because the mean of its divisors is an integer number (551569999).

Almost surely, 2^1103139997 is an apocalyptic number.

It is an amenable number.

1103139997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103139997 is an equidigital number, since it uses as much as digits as its factorization.

1103139997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45927, while the sum is 43.

The square root of 1103139997 is about 33213.5514060150. The cubic root of 1103139997 is about 1033.2614115626.

The spelling of 1103139997 in words is "one billion, one hundred three million, one hundred thirty-nine thousand, nine hundred ninety-seven".