1030201191820 has 24 divisors (see below), whose sum is σ = 2165302153728. Its totient is φ = 411722448000.

The previous prime is 1030201191757. The next prime is 1030201191839. The reversal of 1030201191820 is 281911020301.

It is a super-2 number, since 2×1030201191820² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22353201 + ... + 22399240.

It is an arithmetic number, because the mean of its divisors is an integer number (90220923072).

Almost surely, 2^{1030201191820} is an apocalyptic number.

1030201191820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030201191820 is an abundant number, since it is smaller than the sum of its proper divisors (1135100961908).

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

1030201191820 is a wasteful number, since it uses less digits than its factorization.

1030201191820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44753601 (or 44753599 counting only the distinct ones).

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

The spelling of 1030201191820 in words is "one trillion, thirty billion, two hundred one million, one hundred ninety-one thousand, eight hundred twenty".