1213031121130 has 32 divisors (see below), whose sum is σ = 2237848404480. Its totient is φ = 473198732160.

The previous prime is 1213031121109. The next prime is 1213031121131. The reversal of 1213031121130 is 311211303121.

It is a junction number, because it is equal to n+sod(n) for n = 1213031121098 and 1213031121107.

It is not an unprimeable number, because it can be changed into a prime (1213031121131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4460310 + ... + 4724449.

It is an arithmetic number, because the mean of its divisors is an integer number (69932762640).

Almost surely, 2^{1213031121130} is an apocalyptic number.

1213031121130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213031121130 is a deficient number, since it is larger than the sum of its proper divisors (1024817283350).

1213031121130 is a wasteful number, since it uses less digits than its factorization.

1213031121130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9185094.

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

Adding to 1213031121130 its reverse (311211303121), we get a palindrome (1524242424251).

It can be divided in two parts, 1213031 and 121130, that added together give a triangular number (1334161 = T₁₆₃₃).

The spelling of 1213031121130 in words is "one trillion, two hundred thirteen billion, thirty-one million, one hundred twenty-one thousand, one hundred thirty".