1201101671 has 48 divisors (see below), whose sum is σ = 1614349440. Its totient is φ = 882141120.

The previous prime is 1201101667. The next prime is 1201101679. The reversal of 1201101671 is 1761011021.

It is a happy number.

It is not a de Polignac number, because 1201101671 - 2² = 1201101667 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201101679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 671240 + ... + 673026.

It is an arithmetic number, because the mean of its divisors is an integer number (33632280).

Almost surely, 2^1201101671 is an apocalyptic number.

1201101671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1201101671 is a deficient number, since it is larger than the sum of its proper divisors (413247769).

1201101671 is a wasteful number, since it uses less digits than its factorization.

1201101671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884 (or 1877 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 20.

The square root of 1201101671 is about 34656.9137546897. The cubic root of 1201101671 is about 1062.9836641976.

Adding to 1201101671 its reverse (1761011021), we get a palindrome (2962112692).

The spelling of 1201101671 in words is "one billion, two hundred one million, one hundred one thousand, six hundred seventy-one".