13121123031030 has 32 divisors (see below), whose sum is σ = 35989366028544. Its totient is φ = 2999113835616.

The previous prime is 13121123031017. The next prime is 13121123031047. The reversal of 13121123031030 is 3013032112131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13121123030988 and 13121123031006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31240768912 + ... + 31240769331.

It is an arithmetic number, because the mean of its divisors is an integer number (1124667688392).

Almost surely, 2^{13121123031030} is an apocalyptic number.

13121123031030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121123031030 is an abundant number, since it is smaller than the sum of its proper divisors (22868242997514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13121123031030 is a wasteful number, since it uses less digits than its factorization.

13121123031030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62481538260.

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

Adding to 13121123031030 its reverse (3013032112131), we get a palindrome (16134155143161).

The spelling of 13121123031030 in words is "thirteen trillion, one hundred twenty-one billion, one hundred twenty-three million, thirty-one thousand, thirty".