400141123 has 2 divisors, whose sum is σ = 400141124. Its totient is φ = 400141122.

The previous prime is 400141117. The next prime is 400141141. The reversal of 400141123 is 321141004.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400141123 is a prime.

It is a super-2 number, since 2×400141123² = 320225836631402258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400141097 and 400141106.

It is not a weakly prime, because it can be changed into another prime (400141523) 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, 200070561 + 200070562.

It is an arithmetic number, because the mean of its divisors is an integer number (200070562).

Almost surely, 2^400141123 is an apocalyptic number.

400141123 is a deficient number, since it is larger than the sum of its proper divisors (1).

400141123 is an equidigital number, since it uses as much as digits as its factorization.

400141123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 400141123 is about 20003.5277638721. The cubic root of 400141123 is about 736.8929398027.

Adding to 400141123 its reverse (321141004), we get a palindrome (721282127).

The spelling of 400141123 in words is "four hundred million, one hundred forty-one thousand, one hundred twenty-three".