121442311133 has 72 divisors (see below), whose sum is σ = 148813907616. Its totient is φ = 98200627200.

The previous prime is 121442311127. The next prime is 121442311157. The reversal of 121442311133 is 331113244121.

It is not a de Polignac number, because 121442311133 - 2¹⁰ = 121442310109 is a prime.

It is a super-3 number, since 3×121442311133³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121442317133) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 927040478 + ... + 927040608.

It is an arithmetic number, because the mean of its divisors is an integer number (2066859828).

Almost surely, 2^121442311133 is an apocalyptic number.

121442311133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121442311133 is a deficient number, since it is larger than the sum of its proper divisors (27371596483).

121442311133 is a wasteful number, since it uses less digits than its factorization.

121442311133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 305 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

Adding to 121442311133 its reverse (331113244121), we get a palindrome (452555555254).

The spelling of 121442311133 in words is "one hundred twenty-one billion, four hundred forty-two million, three hundred eleven thousand, one hundred thirty-three".