1020312123102 has 96 divisors (see below), whose sum is σ = 2371605350400. Its totient is φ = 316034986176.

The previous prime is 1020312123079. The next prime is 1020312123113. The reversal of 1020312123102 is 2013212130201.

1020312123102 is a `hidden beast` number, since 10 + 20 + 312 + 12 + 310 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 95681823 + ... + 95692485.

It is an arithmetic number, because the mean of its divisors is an integer number (24704222400).

Almost surely, 2^{1020312123102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020312123102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1185802675200).

1020312123102 is an abundant number, since it is smaller than the sum of its proper divisors (1351293227298).

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

1020312123102 is a wasteful number, since it uses less digits than its factorization.

1020312123102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16022 (or 16019 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1020312123102 its reverse (2013212130201), we get a palindrome (3033524253303).

The spelling of 1020312123102 in words is "one trillion, twenty billion, three hundred twelve million, one hundred twenty-three thousand, one hundred two".