121311131133 has 16 divisors (see below), whose sum is σ = 163253010816. Its totient is φ = 80124019200.

The previous prime is 121311131131. The next prime is 121311131173. The reversal of 121311131133 is 331131113121.

It is not a de Polignac number, because 121311131133 - 2¹ = 121311131131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121311131131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86668 + ... + 500133.

It is an arithmetic number, because the mean of its divisors is an integer number (10203313176).

Almost surely, 2^121311131133 is an apocalyptic number.

It is an amenable number.

121311131133 is a deficient number, since it is larger than the sum of its proper divisors (41941879683).

121311131133 is a wasteful number, since it uses less digits than its factorization.

121311131133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587444.

The product of its digits is 162, while the sum is 21.

Adding to 121311131133 its reverse (331131113121), we get a palindrome (452442244254).

The spelling of 121311131133 in words is "one hundred twenty-one billion, three hundred eleven million, one hundred thirty-one thousand, one hundred thirty-three".