243101330451 has 48 divisors (see below), whose sum is σ = 414074379264. Its totient is φ = 134557604352.

The previous prime is 243101330443. The next prime is 243101330453. The reversal of 243101330451 is 154033101342.

It is a happy number.

It is not a de Polignac number, because 243101330451 - 2³ = 243101330443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243101330453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135985 + ... + 710418.

It is an arithmetic number, because the mean of its divisors is an integer number (8626549568).

Almost surely, 2^243101330451 is an apocalyptic number.

243101330451 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

243101330451 is a deficient number, since it is larger than the sum of its proper divisors (170973048813).

243101330451 is a wasteful number, since it uses less digits than its factorization.

243101330451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846560 (or 846557 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 243101330451 its reverse (154033101342), we get a palindrome (397134431793).

The spelling of 243101330451 in words is "two hundred forty-three billion, one hundred one million, three hundred thirty thousand, four hundred fifty-one".