1031102042985 has 64 divisors (see below), whose sum is σ = 2099240140800. Its totient is φ = 470392837056.

The previous prime is 1031102042953. The next prime is 1031102042987. The reversal of 1031102042985 is 5892402011301.

It is not a de Polignac number, because 1031102042985 - 2⁵ = 1031102042953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1031102042987) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 660025 + ... + 1580454.

It is an arithmetic number, because the mean of its divisors is an integer number (32800627200).

Almost surely, 2^{1031102042985} is an apocalyptic number.

1031102042985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1031102042985 is an abundant number, since it is smaller than the sum of its proper divisors (1068138097815).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031102042985 is a wasteful number, since it uses less digits than its factorization.

1031102042985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240987 (or 2240981 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 1031102042985 in words is "one trillion, thirty-one billion, one hundred two million, forty-two thousand, nine hundred eighty-five".