1233421005151 has 4 divisors (see below), whose sum is σ = 1233423338152. Its totient is φ = 1233418672152.

The previous prime is 1233421005149. The next prime is 1233421005163. The reversal of 1233421005151 is 1515001243321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1233421005151 - 2¹ = 1233421005149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233421005101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48061 + ... + 1571353.

It is an arithmetic number, because the mean of its divisors is an integer number (308355834538).

Almost surely, 2^{1233421005151} is an apocalyptic number.

1233421005151 is a deficient number, since it is larger than the sum of its proper divisors (2333001).

1233421005151 is an equidigital number, since it uses as much as digits as its factorization.

1233421005151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333000.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 1233421005151 its reverse (1515001243321), we get a palindrome (2748422248472).

The spelling of 1233421005151 in words is "one trillion, two hundred thirty-three billion, four hundred twenty-one million, five thousand, one hundred fifty-one".