2030102781 has 16 divisors (see below), whose sum is σ = 3156624000. Its totient is φ = 1160058144.

The previous prime is 2030102777. The next prime is 2030102801. The reversal of 2030102781 is 1872010302.

It is not a de Polignac number, because 2030102781 - 2² = 2030102777 is a prime.

It is a super-2 number, since 2×2030102781² = 8242634602847867922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2030102681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 985416 + ... + 987473.

It is an arithmetic number, because the mean of its divisors is an integer number (197289000).

Almost surely, 2^2030102781 is an apocalyptic number.

2030102781 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2030102781 is a deficient number, since it is larger than the sum of its proper divisors (1126521219).

2030102781 is an equidigital number, since it uses as much as digits as its factorization.

2030102781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972913 (or 1972899 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 2030102781 is about 45056.6618936645. The cubic root of 2030102781 is about 1266.2107861381.

The spelling of 2030102781 in words is "two billion, thirty million, one hundred two thousand, seven hundred eighty-one".