1401431123 has 2 divisors, whose sum is σ = 1401431124. Its totient is φ = 1401431122.

The previous prime is 1401431117. The next prime is 1401431137. The reversal of 1401431123 is 3211341041.

It is a weak prime.

It is an emirp because it is prime and its reverse (3211341041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1401431123 - 2⁴ = 1401431107 is a prime.

It is a super-2 number, since 2×1401431123² = 3928018385026082258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1401431095 and 1401431104.

It is not a weakly prime, because it can be changed into another prime (1401431153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700715561 + 700715562.

It is an arithmetic number, because the mean of its divisors is an integer number (700715562).

Almost surely, 2^1401431123 is an apocalyptic number.

1401431123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401431123 is an equidigital number, since it uses as much as digits as its factorization.

1401431123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1401431123 is about 37435.6931684188. The cubic root of 1401431123 is about 1119.0699983339.

Adding to 1401431123 its reverse (3211341041), we get a palindrome (4612772164).

The spelling of 1401431123 in words is "one billion, four hundred one million, four hundred thirty-one thousand, one hundred twenty-three".