1203142020102 has 96 divisors (see below), whose sum is σ = 3025344276864. Its totient is φ = 341515641600.

The previous prime is 1203142020089. The next prime is 1203142020109. The reversal of 1203142020102 is 2010202413021.

It is a happy number.

1203142020102 is a `hidden beast` number, since 12 + 0 + 31 + 420 + 201 + 0 + 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 not an unprimeable number, because it can be changed into a prime (1203142020109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136788 + ... + 1557239.

It is an arithmetic number, because the mean of its divisors is an integer number (31514002884).

Almost surely, 2^{1203142020102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1203142020102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1512672138432).

1203142020102 is an abundant number, since it is smaller than the sum of its proper divisors (1822202256762).

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

1203142020102 is a wasteful number, since it uses less digits than its factorization.

1203142020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694274 (or 1694271 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1203142020102 its reverse (2010202413021), we get a palindrome (3213344433123).

The spelling of 1203142020102 in words is "one trillion, two hundred three billion, one hundred forty-two million, twenty thousand, one hundred two".