1380926111 has 2 divisors, whose sum is σ = 1380926112. Its totient is φ = 1380926110.

The previous prime is 1380926087. The next prime is 1380926119. The reversal of 1380926111 is 1116290831.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1380926111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1380926119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690463055 + 690463056.

It is an arithmetic number, because the mean of its divisors is an integer number (690463056).

Almost surely, 2^1380926111 is an apocalyptic number.

1380926111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380926111 is an equidigital number, since it uses as much as digits as its factorization.

1380926111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 1380926111 is about 37160.8141864518. The cubic root of 1380926111 is about 1113.5852772731.

The spelling of 1380926111 in words is "one billion, three hundred eighty million, nine hundred twenty-six thousand, one hundred eleven".