121101451 has 2 divisors, whose sum is σ = 121101452. Its totient is φ = 121101450.

The previous prime is 121101443. The next prime is 121101457. The reversal of 121101451 is 154101121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121101451 - 2³ = 121101443 is a prime.

It is a super-4 number, since 4×121101451⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (121101457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550725 + 60550726.

It is an arithmetic number, because the mean of its divisors is an integer number (60550726).

Almost surely, 2^121101451 is an apocalyptic number.

121101451 is a deficient number, since it is larger than the sum of its proper divisors (1).

121101451 is an equidigital number, since it uses as much as digits as its factorization.

121101451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 121101451 is about 11004.6104429007. The cubic root of 121101451 is about 494.7469386345.

Adding to 121101451 its reverse (154101121), we get a palindrome (275202572).

The spelling of 121101451 in words is "one hundred twenty-one million, one hundred one thousand, four hundred fifty-one".