1021021010983 has 4 divisors (see below), whose sum is σ = 1048616173480. Its totient is φ = 993425848488.

The previous prime is 1021021010969. The next prime is 1021021011011. The reversal of 1021021010983 is 3890101201201.

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

It is a cyclic number.

It is not a de Polignac number, because 1021021010983 - 2¹³ = 1021021002791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021021010903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13797581193 + ... + 13797581266.

It is an arithmetic number, because the mean of its divisors is an integer number (262154043370).

Almost surely, 2^{1021021010983} is an apocalyptic number.

1021021010983 is a deficient number, since it is larger than the sum of its proper divisors (27595162497).

1021021010983 is an equidigital number, since it uses as much as digits as its factorization.

1021021010983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27595162496.

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 1021021010983 in words is "one trillion, twenty-one billion, twenty-one million, ten thousand, nine hundred eighty-three".