121322631441 has 16 divisors (see below), whose sum is σ = 177525992448. Its totient is φ = 73088571600.

The previous prime is 121322631431. The next prime is 121322631449. The reversal of 121322631441 is 144136223121.

It is not a de Polignac number, because 121322631441 - 2¹⁰ = 121322630417 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121322631399 and 121322631408.

It is not an unprimeable number, because it can be changed into a prime (121322631449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11001805 + ... + 11012826.

It is an arithmetic number, because the mean of its divisors is an integer number (11095374528).

Almost surely, 2^121322631441 is an apocalyptic number.

121322631441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121322631441 is a deficient number, since it is larger than the sum of its proper divisors (56203361007).

121322631441 is a wasteful number, since it uses less digits than its factorization.

121322631441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22014812.

The product of its digits is 6912, while the sum is 30.

Adding to 121322631441 its reverse (144136223121), we get a palindrome (265458854562).

The spelling of 121322631441 in words is "one hundred twenty-one billion, three hundred twenty-two million, six hundred thirty-one thousand, four hundred forty-one".