1213030121131 has 8 divisors (see below), whose sum is σ = 1242090935360. Its totient is φ = 1184007980232.

The previous prime is 1213030121123. The next prime is 1213030121137. The reversal of 1213030121131 is 1311210303121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1213030121131 - 2³ = 1213030121123 is a prime.

It is a super-2 number, since 2×1213030121131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1213030121099 and 1213030121108.

It is not an unprimeable number, because it can be changed into a prime (1213030121137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9604845 + ... + 9730318.

It is an arithmetic number, because the mean of its divisors is an integer number (155261366920).

Almost surely, 2^{1213030121131} is an apocalyptic number.

1213030121131 is a deficient number, since it is larger than the sum of its proper divisors (29060814229).

1213030121131 is a wasteful number, since it uses less digits than its factorization.

1213030121131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19336665.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1213030121131 its reverse (1311210303121), we get a palindrome (2524240424252).

It can be divided in two parts, 1213030 and 121131, that added together give a triangular number (1334161 = T₁₆₃₃).

The spelling of 1213030121131 in words is "one trillion, two hundred thirteen billion, thirty million, one hundred twenty-one thousand, one hundred thirty-one".