1020002031130 has 16 divisors (see below), whose sum is σ = 1836090816840. Its totient is φ = 407981443392.

The previous prime is 1020002031119. The next prime is 1020002031133. The reversal of 1020002031130 is 311302000201.

It can be written as a sum of positive squares in 4 ways, for example, as 416119175329 + 603882855801 = 645073^2 + 777099^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1020002031130.

It is not an unprimeable number, because it can be changed into a prime (1020002031133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2198985 + ... + 2622124.

Almost surely, 2^{1020002031130} is an apocalyptic number.

1020002031130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020002031130 is a deficient number, since it is larger than the sum of its proper divisors (816088785710).

1020002031130 is a wasteful number, since it uses less digits than its factorization.

1020002031130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4842273.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1020002031130 its reverse (311302000201), we get a palindrome (1331304031331).

The spelling of 1020002031130 in words is "one trillion, twenty billion, two million, thirty-one thousand, one hundred thirty".