1031210320202 has 4 divisors (see below), whose sum is σ = 1546815480306. Its totient is φ = 515605160100.

The previous prime is 1031210320171. The next prime is 1031210320219. The reversal of 1031210320202 is 2020230121301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1020885931321 + 10324388881 = 1010389^2 + 101609^2 .

It is a super-2 number, since 2×1031210320202² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257802580049 + ... + 257802580052.

Almost surely, 2^{1031210320202} is an apocalyptic number.

1031210320202 is a deficient number, since it is larger than the sum of its proper divisors (515605160104).

1031210320202 is an equidigital number, since it uses as much as digits as its factorization.

1031210320202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515605160103.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1031210320202 its reverse (2020230121301), we get a palindrome (3051440441503).

The spelling of 1031210320202 in words is "one trillion, thirty-one billion, two hundred ten million, three hundred twenty thousand, two hundred two".