121778230041 has 24 divisors (see below), whose sum is σ = 192260169920. Its totient is φ = 73821930336.

The previous prime is 121778230033. The next prime is 121778230043. The reversal of 121778230041 is 140032877121.

It is not a de Polignac number, because 121778230041 - 2³ = 121778230033 is a prime.

It is a super-3 number, since 3×121778230041³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121778229978 and 121778230005.

It is not an unprimeable number, because it can be changed into a prime (121778230043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7759621 + ... + 7775298.

Almost surely, 2^121778230041 is an apocalyptic number.

It is an amenable number.

121778230041 is a deficient number, since it is larger than the sum of its proper divisors (70481939879).

121778230041 is a wasteful number, since it uses less digits than its factorization.

121778230041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15535005 (or 15535002 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The spelling of 121778230041 in words is "one hundred twenty-one billion, seven hundred seventy-eight million, two hundred thirty thousand, forty-one".