1313201235 has 16 divisors (see below), whose sum is σ = 2106855936. Its totient is φ = 698462688.

The previous prime is 1313201213. The next prime is 1313201237. The reversal of 1313201235 is 5321023131.

It is not a de Polignac number, because 1313201235 - 2¹² = 1313197139 is a prime.

It is a super-5 number, since 5×1313201235⁵ (a number of 47 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (1313201237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113769 + ... + 124778.

It is an arithmetic number, because the mean of its divisors is an integer number (131678496).

Almost surely, 2^1313201235 is an apocalyptic number.

1313201235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1313201235 is a deficient number, since it is larger than the sum of its proper divisors (793654701).

1313201235 is a wasteful number, since it uses less digits than its factorization.

1313201235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238922.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1313201235 is about 36238.1185355973. The cubic root of 1313201235 is about 1095.0747389615.

Adding to 1313201235 its reverse (5321023131), we get a palindrome (6634224366).

The spelling of 1313201235 in words is "one billion, three hundred thirteen million, two hundred one thousand, two hundred thirty-five".