121231334011 has 4 divisors (see below), whose sum is σ = 121859475832. Its totient is φ = 120603192192.

The previous prime is 121231334009. The next prime is 121231334027. The reversal of 121231334011 is 110433132121.

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 121231334011 - 2¹ = 121231334009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121231335011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314070621 + ... + 314071006.

It is an arithmetic number, because the mean of its divisors is an integer number (30464868958).

Almost surely, 2^121231334011 is an apocalyptic number.

121231334011 is a deficient number, since it is larger than the sum of its proper divisors (628141821).

121231334011 is an equidigital number, since it uses as much as digits as its factorization.

121231334011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628141820.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121231334011 its reverse (110433132121), we get a palindrome (231664466132).

The spelling of 121231334011 in words is "one hundred twenty-one billion, two hundred thirty-one million, three hundred thirty-four thousand, eleven".