121333245155 has 16 divisors (see below), whose sum is σ = 160867404864. Its totient is φ = 87384760320.

The previous prime is 121333245101. The next prime is 121333245161. The reversal of 121333245155 is 551542333121.

It is a happy number.

It is not a de Polignac number, because 121333245155 - 2⁶ = 121333245091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31029566 + ... + 31033475.

It is an arithmetic number, because the mean of its divisors is an integer number (10054212804).

Almost surely, 2^121333245155 is an apocalyptic number.

121333245155 is a deficient number, since it is larger than the sum of its proper divisors (39534159709).

121333245155 is a wasteful number, since it uses less digits than its factorization.

121333245155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62063086.

The product of its digits is 54000, while the sum is 35.

Adding to 121333245155 its reverse (551542333121), we get a palindrome (672875578276).

The spelling of 121333245155 in words is "one hundred twenty-one billion, three hundred thirty-three million, two hundred forty-five thousand, one hundred fifty-five".