1101648631 has 2 divisors, whose sum is σ = 1101648632. Its totient is φ = 1101648630.

The previous prime is 1101648629. The next prime is 1101648661. The reversal of 1101648631 is 1368461011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1101648631 - 2¹ = 1101648629 is a prime.

It is a super-2 number, since 2×1101648631² = 2427259412368348322, which contains 22 as substring.

Together with 1101648629, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1101648593 and 1101648602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101648661) 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, 550824315 + 550824316.

It is an arithmetic number, because the mean of its divisors is an integer number (550824316).

Almost surely, 2^1101648631 is an apocalyptic number.

1101648631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101648631 is an equidigital number, since it uses as much as digits as its factorization.

1101648631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1101648631 is about 33191.0926454674. The cubic root of 1101648631 is about 1032.7955698466.

The spelling of 1101648631 in words is "one billion, one hundred one million, six hundred forty-eight thousand, six hundred thirty-one".