1402030031 has 4 divisors (see below), whose sum is σ = 1403350032. Its totient is φ = 1400710032.

The previous prime is 1402030013. The next prime is 1402030051. The reversal of 1402030031 is 1300302041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1300302041 = 1129 ⋅1151729.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1402030031 is a prime.

It is a super-2 number, since 2×1402030031² = 3931376415651721922, 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 = 1402029988 and 1402030015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402030051) 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, 658406 + ... + 660531.

It is an arithmetic number, because the mean of its divisors is an integer number (350837508).

Almost surely, 2^1402030031 is an apocalyptic number.

1402030031 is a deficient number, since it is larger than the sum of its proper divisors (1320001).

1402030031 is a wasteful number, since it uses less digits than its factorization.

1402030031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320000.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1402030031 is about 37443.6914713280. The cubic root of 1402030031 is about 1119.2293888579.

Adding to 1402030031 its reverse (1300302041), we get a palindrome (2702332072).

The spelling of 1402030031 in words is "one billion, four hundred two million, thirty thousand, thirty-one".