1213100034 has 16 divisors (see below), whose sum is σ = 2430470880. Its totient is φ = 403654880.

The previous prime is 1213100027. The next prime is 1213100081. The reversal of 1213100034 is 4300013121.

It is a super-2 number, since 2×1213100034² = 2943223384981602312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1213099986 and 1213100022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174252 + ... + 181079.

It is an arithmetic number, because the mean of its divisors is an integer number (151904430).

Almost surely, 2^1213100034 is an apocalyptic number.

1213100034 is an abundant number, since it is smaller than the sum of its proper divisors (1217370846).

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

1213100034 is a wasteful number, since it uses less digits than its factorization.

1213100034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355905.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1213100034 is about 34829.5856133833. The cubic root of 1213100034 is about 1066.5114891231.

Adding to 1213100034 its reverse (4300013121), we get a palindrome (5513113155).

The spelling of 1213100034 in words is "one billion, two hundred thirteen million, one hundred thousand, thirty-four".