121321045514 has 4 divisors (see below), whose sum is σ = 181981568274. Its totient is φ = 60660522756.

The previous prime is 121321045507. The next prime is 121321045519. The reversal of 121321045514 is 415540123121.

It is a happy number.

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., 68391141289 + 52929904225 = 261517^2 + 230065^2 .

It is a super-2 number, since 2×121321045514² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121321045519) 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, 30330261377 + ... + 30330261380.

Almost surely, 2^121321045514 is an apocalyptic number.

121321045514 is a deficient number, since it is larger than the sum of its proper divisors (60660522760).

121321045514 is an equidigital number, since it uses as much as digits as its factorization.

121321045514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60660522759.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 121321045514 its reverse (415540123121), we get a palindrome (536861168635).

The spelling of 121321045514 in words is "one hundred twenty-one billion, three hundred twenty-one million, forty-five thousand, five hundred fourteen".