121133351 has 2 divisors, whose sum is σ = 121133352. Its totient is φ = 121133350.

The previous prime is 121133333. The next prime is 121133371. The reversal of 121133351 is 153331121.

It is an a-pointer prime, because the next prime (121133371) can be obtained adding 121133351 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121133351 - 2²² = 116939047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121133321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60566675 + 60566676.

It is an arithmetic number, because the mean of its divisors is an integer number (60566676).

Almost surely, 2^121133351 is an apocalyptic number.

121133351 is a deficient number, since it is larger than the sum of its proper divisors (1).

121133351 is an equidigital number, since it uses as much as digits as its factorization.

121133351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270, while the sum is 20.

The square root of 121133351 is about 11006.0597399796. The cubic root of 121133351 is about 494.7903761590.

Adding to 121133351 its reverse (153331121), we get a palindrome (274464472).

The spelling of 121133351 in words is "one hundred twenty-one million, one hundred thirty-three thousand, three hundred fifty-one".