23421420010155 has 8 divisors (see below), whose sum is σ = 37474272016272. Its totient is φ = 12491424005408.

The previous prime is 23421420010103. The next prime is 23421420010159. The reversal of 23421420010155 is 55101002412432.

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 23421420010155 - 2¹⁰ = 23421420009131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23421420010159) 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, 780714000324 + ... + 780714000353.

It is an arithmetic number, because the mean of its divisors is an integer number (4684284002034).

Almost surely, 2^{23421420010155} is an apocalyptic number.

23421420010155 is a deficient number, since it is larger than the sum of its proper divisors (14052852006117).

23421420010155 is a wasteful number, since it uses less digits than its factorization.

23421420010155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561428000685.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 23421420010155 its reverse (55101002412432), we get a palindrome (78522422422587).

The spelling of 23421420010155 in words is "twenty-three trillion, four hundred twenty-one billion, four hundred twenty million, ten thousand, one hundred fifty-five".