1031201303213 has 16 divisors (see below), whose sum is σ = 1093000976496. Its totient is φ = 969528913920.

The previous prime is 1031201303203. The next prime is 1031201303243. The reversal of 1031201303213 is 3123031021301.

It can be written as a sum of positive squares in 8 ways, for example, as 295486826569 + 735714476644 = 543587^2 + 857738^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031201303213 - 2⁶ = 1031201303149 is a prime.

It is a super-2 number, since 2×1031201303213² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031201303203) 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, 88944545 + ... + 88956137.

It is an arithmetic number, because the mean of its divisors is an integer number (68312561031).

Almost surely, 2^{1031201303213} is an apocalyptic number.

It is an amenable number.

1031201303213 is a deficient number, since it is larger than the sum of its proper divisors (61799673283).

1031201303213 is a wasteful number, since it uses less digits than its factorization.

1031201303213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16624.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1031201303213 its reverse (3123031021301), we get a palindrome (4154232324514).

The spelling of 1031201303213 in words is "one trillion, thirty-one billion, two hundred one million, three hundred three thousand, two hundred thirteen".