1312203031302 has 48 divisors (see below), whose sum is σ = 2877795090432. Its totient is φ = 398391795840.

The previous prime is 1312203031301. The next prime is 1312203031309. The reversal of 1312203031302 is 2031303022131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312203031301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12151878 + ... + 12259385.

It is an arithmetic number, because the mean of its divisors is an integer number (59954064384).

Almost surely, 2^{1312203031302} is an apocalyptic number.

1312203031302 is an abundant number, since it is smaller than the sum of its proper divisors (1565592059130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312203031302 is a wasteful number, since it uses less digits than its factorization.

1312203031302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24411333 (or 24411316 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1312203031302 its reverse (2031303022131), we get a palindrome (3343506053433).

The spelling of 1312203031302 in words is "one trillion, three hundred twelve billion, two hundred three million, thirty-one thousand, three hundred two".