1312042501 has 8 divisors (see below), whose sum is σ = 1635793344. Its totient is φ = 1022370720.

The previous prime is 1312042489. The next prime is 1312042513. The reversal of 1312042501 is 1052402131.

It is an interprime number because it is at equal distance from previous prime (1312042489) and next prime (1312042513).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1312042501 - 2¹³ = 1312034309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312042591) 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 7 ways as a sum of consecutive naturals, for example, 8519680 + ... + 8519833.

It is an arithmetic number, because the mean of its divisors is an integer number (204474168).

Almost surely, 2^1312042501 is an apocalyptic number.

1312042501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1312042501 is a deficient number, since it is larger than the sum of its proper divisors (323750843).

1312042501 is a wasteful number, since it uses less digits than its factorization.

1312042501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17039531.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1312042501 is about 36222.1272290847. The cubic root of 1312042501 is about 1094.7525558625.

Adding to 1312042501 its reverse (1052402131), we get a palindrome (2364444632).

The spelling of 1312042501 in words is "one billion, three hundred twelve million, forty-two thousand, five hundred one".