121901443 has 2 divisors, whose sum is σ = 121901444. Its totient is φ = 121901442.

The previous prime is 121901419. The next prime is 121901467. The reversal of 121901443 is 344109121.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (121901419) and next prime (121901467).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121901443 is a prime.

It is not a weakly prime, because it can be changed into another prime (121101443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60950721 + 60950722.

It is an arithmetic number, because the mean of its divisors is an integer number (60950722).

Almost surely, 2^121901443 is an apocalyptic number.

121901443 is a deficient number, since it is larger than the sum of its proper divisors (1).

121901443 is an equidigital number, since it uses as much as digits as its factorization.

121901443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 121901443 is about 11040.8986500194. The cubic root of 121901443 is about 495.8339755533.

The spelling of 121901443 in words is "one hundred twenty-one million, nine hundred one thousand, four hundred forty-three".