4720121369 has 2 divisors, whose sum is σ = 4720121370. Its totient is φ = 4720121368.

The previous prime is 4720121359. The next prime is 4720121389. The reversal of 4720121369 is 9631210274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3092805769 + 1627315600 = 55613^2 + 40340^2 .

It is a cyclic number.

It is not a de Polignac number, because 4720121369 - 2⁴ = 4720121353 is a prime.

It is a super-2 number, since 2×4720121369² = 44559091476180868322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4720121359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2360060684 + 2360060685.

It is an arithmetic number, because the mean of its divisors is an integer number (2360060685).

Almost surely, 2^4720121369 is an apocalyptic number.

It is an amenable number.

4720121369 is a deficient number, since it is larger than the sum of its proper divisors (1).

4720121369 is an equidigital number, since it uses as much as digits as its factorization.

4720121369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 4720121369 is about 68703.1394406398. The cubic root of 4720121369 is about 1677.4556829628.

The spelling of 4720121369 in words is "four billion, seven hundred twenty million, one hundred twenty-one thousand, three hundred sixty-nine".