121001031153 has 6 divisors (see below), whose sum is σ = 174779267234. Its totient is φ = 80667354096.

The previous prime is 121001031149. The next prime is 121001031161. The reversal of 121001031153 is 351130100121.

It can be written as a sum of positive squares in only one way, i.e., 112139256384 + 8861774769 = 334872^2 + 94137^2 .

It is not a de Polignac number, because 121001031153 - 2² = 121001031149 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121001031653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6722279500 + ... + 6722279517.

Almost surely, 2^121001031153 is an apocalyptic number.

It is an amenable number.

121001031153 is a deficient number, since it is larger than the sum of its proper divisors (53778236081).

121001031153 is a wasteful number, since it uses less digits than its factorization.

121001031153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13444559023 (or 13444559020 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

Adding to 121001031153 its reverse (351130100121), we get a palindrome (472131131274).

The spelling of 121001031153 in words is "one hundred twenty-one billion, one million, thirty-one thousand, one hundred fifty-three".