1031402013 has 4 divisors (see below), whose sum is σ = 1375202688. Its totient is φ = 687601340.

The previous prime is 1031401993. The next prime is 1031402033. The reversal of 1031402013 is 3102041301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3102041301 = 3 ⋅1034013767.

It is an interprime number because it is at equal distance from previous prime (1031401993) and next prime (1031402033).

It is a cyclic number.

It is not a de Polignac number, because 1031402013 - 2¹⁴ = 1031385629 is a prime.

It is a super-2 number, since 2×1031402013² = 2127580224840904338, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1031401983 and 1031402001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031402033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171900333 + ... + 171900338.

It is an arithmetic number, because the mean of its divisors is an integer number (343800672).

Almost surely, 2^1031402013 is an apocalyptic number.

It is an amenable number.

1031402013 is a deficient number, since it is larger than the sum of its proper divisors (343800675).

1031402013 is an equidigital number, since it uses as much as digits as its factorization.

1031402013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343800674.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1031402013 is about 32115.4481986473. The cubic root of 1031402013 is about 1010.3596448191.

Adding to 1031402013 its reverse (3102041301), we get a palindrome (4133443314).

The spelling of 1031402013 in words is "one billion, thirty-one million, four hundred two thousand, thirteen".