121230043001 has 4 divisors (see below), whose sum is σ = 127610571600. Its totient is φ = 114849514404.

The previous prime is 121230042979. The next prime is 121230043043. The reversal of 121230043001 is 100340032121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121230043001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121230043091) 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, 3190264271 + ... + 3190264308.

It is an arithmetic number, because the mean of its divisors is an integer number (31902642900).

Almost surely, 2^121230043001 is an apocalyptic number.

It is an amenable number.

121230043001 is a deficient number, since it is larger than the sum of its proper divisors (6380528599).

121230043001 is an equidigital number, since it uses as much as digits as its factorization.

121230043001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6380528598.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 121230043001 its reverse (100340032121), we get a palindrome (221570075122).

The spelling of 121230043001 in words is "one hundred twenty-one billion, two hundred thirty million, forty-three thousand, one".