121302031112 has 8 divisors (see below), whose sum is σ = 227441308350. Its totient is φ = 60651015552.

The previous prime is 121302031099. The next prime is 121302031129. The reversal of 121302031112 is 211130203121.

It can be written as a sum of positive squares in only one way, i.e., 112515968356 + 8786062756 = 335434^2 + 93734^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7581376937 + ... + 7581376952.

Almost surely, 2^121302031112 is an apocalyptic number.

It is an amenable number.

121302031112 is a deficient number, since it is larger than the sum of its proper divisors (106139277238).

121302031112 is a wasteful number, since it uses less digits than its factorization.

121302031112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15162753895 (or 15162753891 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121302031112 its reverse (211130203121), we get a palindrome (332432234233).

The spelling of 121302031112 in words is "one hundred twenty-one billion, three hundred two million, thirty-one thousand, one hundred twelve".