13203121123131 has 16 divisors (see below), whose sum is σ = 17645375784960. Its totient is φ = 8781474461760.

The previous prime is 13203121123111. The next prime is 13203121123151. The reversal of 13203121123131 is 13132112130231.

It is an interprime number because it is at equal distance from previous prime (13203121123111) and next prime (13203121123151).

It is not a de Polignac number, because 13203121123131 - 2⁵ = 13203121123099 is a prime.

It is a super-4 number, since 4×13203121123131⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (13203121123111) 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, 93119550 + ... + 93261228.

It is an arithmetic number, because the mean of its divisors is an integer number (1102835986560).

Almost surely, 2^{13203121123131} is an apocalyptic number.

13203121123131 is a deficient number, since it is larger than the sum of its proper divisors (4442254661829).

13203121123131 is a wasteful number, since it uses less digits than its factorization.

13203121123131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214186.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 13203121123131 its reverse (13132112130231), we get a palindrome (26335233253362).

The spelling of 13203121123131 in words is "thirteen trillion, two hundred three billion, one hundred twenty-one million, one hundred twenty-three thousand, one hundred thirty-one".