121101041142 has 56 divisors (see below), whose sum is σ = 276417942456. Its totient is φ = 39764488896.

The previous prime is 121101041141. The next prime is 121101041143. The reversal of 121101041142 is 241140101121.

121101041142 is a `hidden beast` number, since 1 + 211 + 0 + 1 + 0 + 411 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (121101041141) and next prime (121101041143).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101041141) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 522163 + ... + 717534.

Almost surely, 2^121101041142 is an apocalyptic number.

121101041142 is an abundant number, since it is smaller than the sum of its proper divisors (155316901314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121101041142 is an equidigital number, since it uses as much as digits as its factorization.

121101041142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239784 (or 1239769 counting only the distinct ones).

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

Adding to 121101041142 its reverse (241140101121), we get a palindrome (362241142263).

The spelling of 121101041142 in words is "one hundred twenty-one billion, one hundred one million, forty-one thousand, one hundred forty-two".