1401031123 has 4 divisors (see below), whose sum is σ = 1402556560. Its totient is φ = 1399505688.

The previous prime is 1401031069. The next prime is 1401031127. The reversal of 1401031123 is 3211301041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3211301041 = 13 ⋅247023157.

It is a cyclic number.

It is not a de Polignac number, because 1401031123 - 2⁹ = 1401030611 is a prime.

It is a super-2 number, since 2×1401031123² = 3925776415229282258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1401031097 and 1401031106.

It is not an unprimeable number, because it can be changed into a prime (1401031127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761340 + ... + 763177.

It is an arithmetic number, because the mean of its divisors is an integer number (350639140).

Almost surely, 2^1401031123 is an apocalyptic number.

1401031123 is a deficient number, since it is larger than the sum of its proper divisors (1525437).

1401031123 is an equidigital number, since it uses as much as digits as its factorization.

1401031123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525436.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1401031123 is about 37430.3502922428. The cubic root of 1401031123 is about 1118.9635189437.

Adding to 1401031123 its reverse (3211301041), we get a palindrome (4612332164).

The spelling of 1401031123 in words is "one billion, four hundred one million, thirty-one thousand, one hundred twenty-three".