121153024312 has 8 divisors (see below), whose sum is σ = 227161920600. Its totient is φ = 60576512152.

The previous prime is 121153024309. The next prime is 121153024319. The reversal of 121153024312 is 213420351121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121153024319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7572064012 + ... + 7572064027.

It is an arithmetic number, because the mean of its divisors is an integer number (28395240075).

Almost surely, 2^121153024312 is an apocalyptic number.

It is an amenable number.

121153024312 is a deficient number, since it is larger than the sum of its proper divisors (106008896288).

121153024312 is a wasteful number, since it uses less digits than its factorization.

121153024312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15144128045 (or 15144128041 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 121153024312 its reverse (213420351121), we get a palindrome (334573375433).

The spelling of 121153024312 in words is "one hundred twenty-one billion, one hundred fifty-three million, twenty-four thousand, three hundred twelve".