1312203101 has 8 divisors (see below), whose sum is σ = 1431966144. Its totient is φ = 1192518720.

The previous prime is 1312203083. The next prime is 1312203119. The reversal of 1312203101 is 1013022131.

It is an interprime number because it is at equal distance from previous prime (1312203083) and next prime (1312203119).

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

It is a cyclic number.

It is not a de Polignac number, because 1312203101 - 2⁶ = 1312203037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312203131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18440 + ... + 54446.

It is an arithmetic number, because the mean of its divisors is an integer number (178995768).

Almost surely, 2^1312203101 is an apocalyptic number.

1312203101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1312203101 is a deficient number, since it is larger than the sum of its proper divisors (119763043).

1312203101 is a wasteful number, since it uses less digits than its factorization.

1312203101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39331.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1312203101 is about 36224.3440382293. The cubic root of 1312203101 is about 1094.7972216126.

Adding to 1312203101 its reverse (1013022131), we get a palindrome (2325225232).

The spelling of 1312203101 in words is "one billion, three hundred twelve million, two hundred three thousand, one hundred one".