121631713 has 16 divisors (see below), whose sum is σ = 144288000. Its totient is φ = 100320192.

The previous prime is 121631689. The next prime is 121631717. The reversal of 121631713 is 317136121.

It is not a de Polignac number, because 121631713 - 2⁹ = 121631201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121631717) 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 15 ways as a sum of consecutive naturals, for example, 72043 + ... + 73711.

It is an arithmetic number, because the mean of its divisors is an integer number (9018000).

Almost surely, 2^121631713 is an apocalyptic number.

It is an amenable number.

121631713 is a deficient number, since it is larger than the sum of its proper divisors (22656287).

121631713 is a wasteful number, since it uses less digits than its factorization.

121631713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064.

The product of its digits is 756, while the sum is 25.

The square root of 121631713 is about 11028.6768472016. The cubic root of 121631713 is about 495.4679966690.

Adding to 121631713 its reverse (317136121), we get a palindrome (438767834).

The spelling of 121631713 in words is "one hundred twenty-one million, six hundred thirty-one thousand, seven hundred thirteen".