121142104011 has 24 divisors (see below), whose sum is σ = 181536176640. Its totient is φ = 80729232552.

The previous prime is 121142103967. The next prime is 121142104033. The reversal of 121142104011 is 110401241121.

121142104011 is a `hidden beast` number, since 1 + 211 + 42 + 10 + 401 + 1 = 666.

It is not a de Polignac number, because 121142104011 - 2⁶ = 121142103947 is a prime.

It is a super-3 number, since 3×121142104011³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121142104051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 519930 + ... + 715968.

It is an arithmetic number, because the mean of its divisors is an integer number (7564007360).

Almost surely, 2^121142104011 is an apocalyptic number.

121142104011 is a deficient number, since it is larger than the sum of its proper divisors (60394072629).

121142104011 is an equidigital number, since it uses as much as digits as its factorization.

121142104011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198597 (or 198585 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121142104011 its reverse (110401241121), we get a palindrome (231543345132).

The spelling of 121142104011 in words is "one hundred twenty-one billion, one hundred forty-two million, one hundred four thousand, eleven".