121142011401 has 8 divisors (see below), whose sum is σ = 179469646560. Its totient is φ = 80761340916.

The previous prime is 121142011387. The next prime is 121142011421. The reversal of 121142011401 is 104110241121.

121142011401 is a `hidden beast` number, since 1 + 211 + 42 + 0 + 11 + 401 = 666.

It is not a de Polignac number, because 121142011401 - 2⁷ = 121142011273 is a prime.

It is a super-3 number, since 3×121142011401³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121142011421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2243370555 + ... + 2243370608.

It is an arithmetic number, because the mean of its divisors is an integer number (22433705820).

Almost surely, 2^121142011401 is an apocalyptic number.

It is an amenable number.

121142011401 is a deficient number, since it is larger than the sum of its proper divisors (58327635159).

121142011401 is an equidigital number, since it uses as much as digits as its factorization.

121142011401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486741172 (or 4486741166 counting only the distinct ones).

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

Adding to 121142011401 its reverse (104110241121), we get a palindrome (225252252522).

The spelling of 121142011401 in words is "one hundred twenty-one billion, one hundred forty-two million, eleven thousand, four hundred one".