121751531114 has 16 divisors (see below), whose sum is σ = 189223033608. Its totient is φ = 58706307072.

The previous prime is 121751531101. The next prime is 121751531117. The reversal of 121751531114 is 411135157121.

It can be written as a sum of positive squares in 4 ways, for example, as 84050707225 + 37700823889 = 289915^2 + 194167^2 .

It is not an unprimeable number, because it can be changed into a prime (121751531117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7271687 + ... + 7288410.

Almost surely, 2^121751531114 is an apocalyptic number.

121751531114 is a deficient number, since it is larger than the sum of its proper divisors (67471502494).

121751531114 is a wasteful number, since it uses less digits than its factorization.

121751531114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14560249.

The product of its digits is 4200, while the sum is 32.

Adding to 121751531114 its reverse (411135157121), we get a palindrome (532886688235).

The spelling of 121751531114 in words is "one hundred twenty-one billion, seven hundred fifty-one million, five hundred thirty-one thousand, one hundred fourteen".