12121311001030 has 64 divisors (see below), whose sum is σ = 27663163752960. Its totient is φ = 3714035846400.

The previous prime is 12121311001001. The next prime is 12121311001031. The reversal of 12121311001030 is 3010011312121.

It is a happy number.

It is a super-2 number, since 2×12121311001030² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12121311000995 and 12121311001013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121311001031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133361031 + ... + 133451890.

It is an arithmetic number, because the mean of its divisors is an integer number (432236933640).

Almost surely, 2^{12121311001030} is an apocalyptic number.

12121311001030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121311001030 is an abundant number, since it is smaller than the sum of its proper divisors (15541852751930).

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

12121311001030 is a wasteful number, since it uses less digits than its factorization.

12121311001030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266813005.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 12121311001030 its reverse (3010011312121), we get a palindrome (15131322313151).

The spelling of 12121311001030 in words is "twelve trillion, one hundred twenty-one billion, three hundred eleven million, one thousand, thirty".