121231101323202 has 64 divisors (see below), whose sum is σ = 276474577809024. Its totient is φ = 35107415608320.

The previous prime is 121231101323161. The next prime is 121231101323351. The reversal of 121231101323202 is 202323101132121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 358735552 + ... + 359073332.

It is an arithmetic number, because the mean of its divisors is an integer number (4319915278266).

Almost surely, 2^{121231101323202} is an apocalyptic number.

121231101323202 is an abundant number, since it is smaller than the sum of its proper divisors (155243476485822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121231101323202 is a wasteful number, since it uses less digits than its factorization.

121231101323202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608483.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 121231101323202 its reverse (202323101132121), we get a palindrome (323554202455323).

The spelling of 121231101323202 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, one hundred one million, three hundred twenty-three thousand, two hundred two".