121010230311303 has 16 divisors (see below), whose sum is σ = 172468451264256. Its totient is φ = 75283847770560.

The previous prime is 121010230311281. The next prime is 121010230311307. The reversal of 121010230311303 is 303113032010121.

It is a happy number.

It is not a de Polignac number, because 121010230311303 - 2¹³ = 121010230303111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121010230311303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010230311307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21387453925 + ... + 21387459582.

It is an arithmetic number, because the mean of its divisors is an integer number (10779278204016).

Almost surely, 2^{121010230311303} is an apocalyptic number.

121010230311303 is a deficient number, since it is larger than the sum of its proper divisors (51458220952953).

121010230311303 is a wasteful number, since it uses less digits than its factorization.

121010230311303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42774913574.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 121010230311303 its reverse (303113032010121), we get a palindrome (424123262321424).

The spelling of 121010230311303 in words is "one hundred twenty-one trillion, ten billion, two hundred thirty million, three hundred eleven thousand, three hundred three".