1101006551 has 4 divisors (see below), whose sum is σ = 1112357232. Its totient is φ = 1089655872.

The previous prime is 1101006541. The next prime is 1101006553. The reversal of 1101006551 is 1556001011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1556001011 = 31 ⋅50193581.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101006551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101006553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5675195 + ... + 5675388.

It is an arithmetic number, because the mean of its divisors is an integer number (278089308).

Almost surely, 2^1101006551 is an apocalyptic number.

1101006551 is a deficient number, since it is larger than the sum of its proper divisors (11350681).

1101006551 is an equidigital number, since it uses as much as digits as its factorization.

1101006551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11350680.

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 1101006551 is about 33181.4187611078. The cubic root of 1101006551 is about 1032.5948808562.

Adding to 1101006551 its reverse (1556001011), we get a palindrome (2657007562).

The spelling of 1101006551 in words is "one billion, one hundred one million, six thousand, five hundred fifty-one".