121011413 has 2 divisors, whose sum is σ = 121011414. Its totient is φ = 121011412.

The previous prime is 121011409. The next prime is 121011463. The reversal of 121011413 is 314110121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63888049 + 57123364 = 7993^2 + 7558^2 .

It is a cyclic number.

It is not a de Polignac number, because 121011413 - 2² = 121011409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121011463) 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, 60505706 + 60505707.

It is an arithmetic number, because the mean of its divisors is an integer number (60505707).

Almost surely, 2^121011413 is an apocalyptic number.

It is an amenable number.

121011413 is a deficient number, since it is larger than the sum of its proper divisors (1).

121011413 is an equidigital number, since it uses as much as digits as its factorization.

121011413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 121011413 is about 11000.5187604949. The cubic root of 121011413 is about 494.6242947164.

Adding to 121011413 its reverse (314110121), we get a palindrome (435121534).

The spelling of 121011413 in words is "one hundred twenty-one million, eleven thousand, four hundred thirteen".