1101397051 has 2 divisors, whose sum is σ = 1101397052. Its totient is φ = 1101397050.

The previous prime is 1101397049. The next prime is 1101397069. The reversal of 1101397051 is 1507931011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1101397051 - 2¹ = 1101397049 is a prime.

Together with 1101397049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1101397951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550698525 + 550698526.

It is an arithmetic number, because the mean of its divisors is an integer number (550698526).

Almost surely, 2^1101397051 is an apocalyptic number.

1101397051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101397051 is an equidigital number, since it uses as much as digits as its factorization.

1101397051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 945, while the sum is 28.

The square root of 1101397051 is about 33187.3025568515. The cubic root of 1101397051 is about 1032.7169451129.

The spelling of 1101397051 in words is "one billion, one hundred one million, three hundred ninety-seven thousand, fifty-one".