4140202123 has 2 divisors, whose sum is σ = 4140202124. Its totient is φ = 4140202122.

The previous prime is 4140202109. The next prime is 4140202211. The reversal of 4140202123 is 3212020414.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4140202123 - 2¹³ = 4140193931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4140202123.

It is not a weakly prime, because it can be changed into another prime (4140206123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2070101061 + 2070101062.

It is an arithmetic number, because the mean of its divisors is an integer number (2070101062).

Almost surely, 2^4140202123 is an apocalyptic number.

4140202123 is a deficient number, since it is larger than the sum of its proper divisors (1).

4140202123 is an equidigital number, since it uses as much as digits as its factorization.

4140202123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 4140202123 is about 64344.4024216559. The cubic root of 4140202123 is about 1605.7349045002.

Adding to 4140202123 its reverse (3212020414), we get a palindrome (7352222537).

The spelling of 4140202123 in words is "four billion, one hundred forty million, two hundred two thousand, one hundred twenty-three".