1021040102043 has 48 divisors (see below), whose sum is σ = 1643797436736. Its totient is φ = 606687252480.

The previous prime is 1021040102011. The next prime is 1021040102057. The reversal of 1021040102043 is 3402010401201.

1021040102043 is a `hidden beast` number, since 10 + 210 + 401 + 0 + 2 + 0 + 43 = 666.

It is not a de Polignac number, because 1021040102043 - 2⁵ = 1021040102011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021040102543) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 631855 + ... + 1562472.

It is an arithmetic number, because the mean of its divisors is an integer number (34245779932).

Almost surely, 2^{1021040102043} is an apocalyptic number.

1021040102043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1021040102043 is a deficient number, since it is larger than the sum of its proper divisors (622757334693).

1021040102043 is a wasteful number, since it uses less digits than its factorization.

1021040102043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194484 (or 2194481 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1021040102043 its reverse (3402010401201), we get a palindrome (4423050503244).

The spelling of 1021040102043 in words is "one trillion, twenty-one billion, forty million, one hundred two thousand, forty-three".