23201221134631 has 8 divisors (see below), whose sum is σ = 23282553263760. Its totient is φ = 23119903612032.

The previous prime is 23201221134547. The next prime is 23201221134673. The reversal of 23201221134631 is 13643112210232.

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 23201221134631 - 2¹⁹ = 23201220610343 is a prime.

It is a super-2 number, since 2×23201221134631² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23201221134593 and 23201221134602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23201221134031) 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, 464370 + ... + 6827743.

It is an arithmetic number, because the mean of its divisors is an integer number (2910319157970).

Almost surely, 2^{23201221134631} is an apocalyptic number.

23201221134631 is a deficient number, since it is larger than the sum of its proper divisors (81332129129).

23201221134631 is a wasteful number, since it uses less digits than its factorization.

23201221134631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7303265.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 23201221134631 its reverse (13643112210232), we get a palindrome (36844333344863).

The spelling of 23201221134631 in words is "twenty-three trillion, two hundred one billion, two hundred twenty-one million, one hundred thirty-four thousand, six hundred thirty-one".