1203211023102 has 128 divisors (see below), whose sum is σ = 3092770252800. Its totient is φ = 342682444800.

The previous prime is 1203211023073. The next prime is 1203211023109. The reversal of 1203211023102 is 2013201123021.

1203211023102 is a `hidden beast` number, since 1 + 20 + 321 + 10 + 2 + 310 + 2 = 666.

It is a super-2 number, since 2×1203211023102² (a number of 25 digits) contains 22 as substring.

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 (1203211023109) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7177602 + ... + 7343322.

It is an arithmetic number, because the mean of its divisors is an integer number (24162267600).

Almost surely, 2^{1203211023102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1203211023102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1546385126400).

1203211023102 is an abundant number, since it is smaller than the sum of its proper divisors (1889559229698).

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

1203211023102 is a wasteful number, since it uses less digits than its factorization.

1203211023102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166479 (or 166473 counting only the distinct ones).

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

Adding to 1203211023102 its reverse (2013201123021), we get a palindrome (3216412146123).

The spelling of 1203211023102 in words is "one trillion, two hundred three billion, two hundred eleven million, twenty-three thousand, one hundred two".