1213121333030 has 32 divisors (see below), whose sum is σ = 2194010388000. Its totient is φ = 482940859392.

The previous prime is 1213121332949. The next prime is 1213121333057. The reversal of 1213121333030 is 303331213121.

It is a junction number, because it is equal to n+sod(n) for n = 1213121332987 and 1213121333005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5835821 + ... + 6040119.

It is an arithmetic number, because the mean of its divisors is an integer number (68562824625).

Almost surely, 2^{1213121333030} is an apocalyptic number.

1213121333030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213121333030 is a deficient number, since it is larger than the sum of its proper divisors (980889054970).

1213121333030 is a wasteful number, since it uses less digits than its factorization.

1213121333030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207128.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1213121333030 its reverse (303331213121), we get a palindrome (1516452546151).

The spelling of 1213121333030 in words is "one trillion, two hundred thirteen billion, one hundred twenty-one million, three hundred thirty-three thousand, thirty".