1020012102 has 20 divisors (see below), whose sum is σ = 2285583036. Its totient is φ = 340003980.

The previous prime is 1020012013. The next prime is 1020012107. The reversal of 1020012102 is 2012100201.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020012107) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3148024 + ... + 3148347.

Almost surely, 2^1020012102 is an apocalyptic number.

1020012102 is an abundant number, since it is smaller than the sum of its proper divisors (1265570934).

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

1020012102 is an equidigital number, since it uses as much as digits as its factorization.

1020012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6296385 (or 6296376 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1020012102 is about 31937.6283089399. The cubic root of 1020012102 is about 1006.6266906385.

Adding to 1020012102 its reverse (2012100201), we get a palindrome (3032112303).

The spelling of 1020012102 in words is "one billion, twenty million, twelve thousand, one hundred two".