1020200209974 has 96 divisors (see below), whose sum is σ = 2499136053120. Its totient is φ = 308259966960.

The previous prime is 1020200209961. The next prime is 1020200209981. The reversal of 1020200209974 is 4799020020201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2042317 + ... + 2492279.

It is an arithmetic number, because the mean of its divisors is an integer number (26032667220).

Almost surely, 2^{1020200209974} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020200209974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1249568026560).

1020200209974 is an abundant number, since it is smaller than the sum of its proper divisors (1478935843146).

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

1020200209974 is a wasteful number, since it uses less digits than its factorization.

1020200209974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450343 (or 450326 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 1020200209974 in words is "one trillion, twenty billion, two hundred million, two hundred nine thousand, nine hundred seventy-four".