2421231155 has 8 divisors (see below), whose sum is σ = 3320545632. Its totient is φ = 1660272768.

The previous prime is 2421231151. The next prime is 2421231157. The reversal of 2421231155 is 5511321242.

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

It is not a de Polignac number, because 2421231155 - 2² = 2421231151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2421231151) 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, 34588982 + ... + 34589051.

It is an arithmetic number, because the mean of its divisors is an integer number (415068204).

Almost surely, 2^2421231155 is an apocalyptic number.

2421231155 is a deficient number, since it is larger than the sum of its proper divisors (899314477).

2421231155 is an equidigital number, since it uses as much as digits as its factorization.

2421231155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69178045.

The product of its digits is 2400, while the sum is 26.

The square root of 2421231155 is about 49206.0073060190. The cubic root of 2421231155 is about 1342.8023249115.

Adding to 2421231155 its reverse (5511321242), we get a palindrome (7932552397).

The spelling of 2421231155 in words is "two billion, four hundred twenty-one million, two hundred thirty-one thousand, one hundred fifty-five".