121527233378 has 4 divisors (see below), whose sum is σ = 182290850070. Its totient is φ = 60763616688.

The previous prime is 121527233371. The next prime is 121527233389. The reversal of 121527233378 is 873332725121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 100072893649 + 21454339729 = 316343^2 + 146473^2 .

It is not an unprimeable number, because it can be changed into a prime (121527233371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30381808343 + ... + 30381808346.

Almost surely, 2^121527233378 is an apocalyptic number.

121527233378 is a deficient number, since it is larger than the sum of its proper divisors (60763616692).

121527233378 is an equidigital number, since it uses as much as digits as its factorization.

121527233378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60763616691.

The product of its digits is 423360, while the sum is 44.

Adding to 121527233378 its reverse (873332725121), we get a palindrome (994859958499).

The spelling of 121527233378 in words is "one hundred twenty-one billion, five hundred twenty-seven million, two hundred thirty-three thousand, three hundred seventy-eight".