1021003112987 has 32 divisors (see below), whose sum is σ = 1223167490496. Its totient is φ = 839907993600.

The previous prime is 1021003112957. The next prime is 1021003113007. The reversal of 1021003112987 is 7892113001201.

1021003112987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1021003112987 - 2²⁴ = 1020986335771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021003112957) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8985287 + ... + 9098207.

It is an arithmetic number, because the mean of its divisors is an integer number (38223984078).

Almost surely, 2^{1021003112987} is an apocalyptic number.

1021003112987 is a deficient number, since it is larger than the sum of its proper divisors (202164377509).

1021003112987 is a wasteful number, since it uses less digits than its factorization.

1021003112987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114191.

The product of its (nonzero) digits is 6048, while the sum is 35.

The spelling of 1021003112987 in words is "one trillion, twenty-one billion, three million, one hundred twelve thousand, nine hundred eighty-seven".