1400440421123 has 2 divisors, whose sum is σ = 1400440421124. Its totient is φ = 1400440421122.

The previous prime is 1400440421111. The next prime is 1400440421189. The reversal of 1400440421123 is 3211240440041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1400440421123 - 2⁸ = 1400440420867 is a prime.

It is a super-2 number, since 2×1400440421123² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1400440421092 and 1400440421101.

It is not a weakly prime, because it can be changed into another prime (1400440421923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700220210561 + 700220210562.

It is an arithmetic number, because the mean of its divisors is an integer number (700220210562).

Almost surely, 2^{1400440421123} is an apocalyptic number.

1400440421123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400440421123 is an equidigital number, since it uses as much as digits as its factorization.

1400440421123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1400440421123 its reverse (3211240440041), we get a palindrome (4611680861164).

The spelling of 1400440421123 in words is "one trillion, four hundred billion, four hundred forty million, four hundred twenty-one thousand, one hundred twenty-three".