21121431132301 has 8 divisors (see below), whose sum is σ = 21273568414560. Its totient is φ = 20969296486608.

The previous prime is 21121431132287. The next prime is 21121431132313. The reversal of 21121431132301 is 10323113412112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21121431132301 - 2²³ = 21121422743693 is a prime.

It is a super-3 number, since 3×21121431132301³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21121431132101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17146290 + ... + 18336796.

It is an arithmetic number, because the mean of its divisors is an integer number (2659196051820).

Almost surely, 2^{21121431132301} is an apocalyptic number.

It is an amenable number.

21121431132301 is a deficient number, since it is larger than the sum of its proper divisors (152137282259).

21121431132301 is a wasteful number, since it uses less digits than its factorization.

21121431132301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318283.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 21121431132301 its reverse (10323113412112), we get a palindrome (31444544544413).

The spelling of 21121431132301 in words is "twenty-one trillion, one hundred twenty-one billion, four hundred thirty-one million, one hundred thirty-two thousand, three hundred one".