1101980939 has 2 divisors, whose sum is σ = 1101980940. Its totient is φ = 1101980938.

The previous prime is 1101980933. The next prime is 1101980969. The reversal of 1101980939 is 9390891011.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1101980939 - 2⁸ = 1101980683 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101980896 and 1101980905.

It is not a weakly prime, because it can be changed into another prime (1101980933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550990469 + 550990470.

It is an arithmetic number, because the mean of its divisors is an integer number (550990470).

Almost surely, 2^1101980939 is an apocalyptic number.

1101980939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101980939 is an equidigital number, since it uses as much as digits as its factorization.

1101980939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 41.

The square root of 1101980939 is about 33196.0982496437. The cubic root of 1101980939 is about 1032.8994056546.

The spelling of 1101980939 in words is "one billion, one hundred one million, nine hundred eighty thousand, nine hundred thirty-nine".