1402130123 has 4 divisors (see below), whose sum is σ = 1403067000. Its totient is φ = 1401193248.

The previous prime is 1402130083. The next prime is 1402130143. The reversal of 1402130123 is 3210312041.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1402130123 - 2¹⁸ = 1401867979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1402130143) 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 in 3 ways as a sum of consecutive naturals, for example, 466190 + ... + 469187.

It is an arithmetic number, because the mean of its divisors is an integer number (350766750).

Almost surely, 2^1402130123 is an apocalyptic number.

1402130123 is a deficient number, since it is larger than the sum of its proper divisors (936877).

1402130123 is an equidigital number, since it uses as much as digits as its factorization.

1402130123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936876.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1402130123 is about 37445.0280144107. The cubic root of 1402130123 is about 1119.2560224392.

Adding to 1402130123 its reverse (3210312041), we get a palindrome (4612442164).

It can be divided in two parts, 14021 and 30123, that added together give a palindrome (44144).

The spelling of 1402130123 in words is "one billion, four hundred two million, one hundred thirty thousand, one hundred twenty-three".