1020001021030 has 64 divisors (see below), whose sum is σ = 1861120880640. Its totient is φ = 402466506624.

The previous prime is 1020001020989. The next prime is 1020001021057. The reversal of 1020001021030 is 301201000201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1020001020998 and 1020001021016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132687847 + ... + 132695533.

It is an arithmetic number, because the mean of its divisors is an integer number (29080013760).

Almost surely, 2^{1020001021030} is an apocalyptic number.

1020001021030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020001021030 is a deficient number, since it is larger than the sum of its proper divisors (841119859610).

1020001021030 is a wasteful number, since it uses less digits than its factorization.

1020001021030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8453.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 1020001021030 its reverse (301201000201), we get a palindrome (1321202021231).

The spelling of 1020001021030 in words is "one trillion, twenty billion, one million, twenty-one thousand, thirty".