121403243002102 has 4 divisors (see below), whose sum is σ = 182104864503156. Its totient is φ = 60701621501050.

The previous prime is 121403243002039. The next prime is 121403243002109. The reversal of 121403243002102 is 201200342304121.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×121403243002102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121403243002109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30350810750524 + ... + 30350810750527.

It is an arithmetic number, because the mean of its divisors is an integer number (45526216125789).

Almost surely, 2^{121403243002102} is an apocalyptic number.

121403243002102 is a deficient number, since it is larger than the sum of its proper divisors (60701621501054).

121403243002102 is an equidigital number, since it uses as much as digits as its factorization.

121403243002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60701621501053.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 121403243002102 its reverse (201200342304121), we get a palindrome (322603585306223).

The spelling of 121403243002102 in words is "one hundred twenty-one trillion, four hundred three billion, two hundred forty-three million, two thousand, one hundred two".