1020103030312 has 8 divisors (see below), whose sum is σ = 1912693181850. Its totient is φ = 510051515152.

The previous prime is 1020103030307. The next prime is 1020103030357. The reversal of 1020103030312 is 2130303010201.

It can be written as a sum of positive squares in only one way, i.e., 920091497796 + 100011532516 = 959214^2 + 316246^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1020103030312² (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 (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63756439387 + ... + 63756439402.

Almost surely, 2^{1020103030312} is an apocalyptic number.

It is an amenable number.

1020103030312 is a deficient number, since it is larger than the sum of its proper divisors (892590151538).

1020103030312 is a wasteful number, since it uses less digits than its factorization.

1020103030312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127512878795 (or 127512878791 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 1020103030312 its reverse (2130303010201), we get a palindrome (3150406040513).

The spelling of 1020103030312 in words is "one trillion, twenty billion, one hundred three million, thirty thousand, three hundred twelve".