121031040112 has 20 divisors (see below), whose sum is σ = 236689210296. Its totient is φ = 59949953600.

The previous prime is 121031040101. The next prime is 121031040139. The reversal of 121031040112 is 211040130121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35346139 + ... + 35349562.

Almost surely, 2^121031040112 is an apocalyptic number.

It is an amenable number.

121031040112 is a deficient number, since it is larger than the sum of its proper divisors (115658170184).

121031040112 is a wasteful number, since it uses less digits than its factorization.

121031040112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70695816 (or 70695810 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121031040112 its reverse (211040130121), we get a palindrome (332071170233).

Subtracting 121031040112 from its reverse (211040130121), we obtain a palindrome (90009090009).

The spelling of 121031040112 in words is "one hundred twenty-one billion, thirty-one million, forty thousand, one hundred twelve".