1213101402 has 16 divisors (see below), whose sum is σ = 2568920832. Its totient is φ = 380580800.

The previous prime is 1213101377. The next prime is 1213101427. The reversal of 1213101402 is 2041013121.

It is an interprime number because it is at equal distance from previous prime (1213101377) and next prime (1213101427).

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, 5946474 + ... + 5946677.

It is an arithmetic number, because the mean of its divisors is an integer number (160557552).

Almost surely, 2^1213101402 is an apocalyptic number.

1213101402 is an abundant number, since it is smaller than the sum of its proper divisors (1355819430).

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

1213101402 is a wasteful number, since it uses less digits than its factorization.

1213101402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11893173.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1213101402 is about 34829.6052518543. The cubic root of 1213101402 is about 1066.5118900208.

Adding to 1213101402 its reverse (2041013121), we get a palindrome (3254114523).

The spelling of 1213101402 in words is "one billion, two hundred thirteen million, one hundred one thousand, four hundred two".