1213102338 has 32 divisors (see below), whose sum is σ = 2784430080. Its totient is φ = 345147600.

The previous prime is 1213102321. The next prime is 1213102339. The reversal of 1213102338 is 8332013121.

It is a super-2 number, since 2×1213102338² = 2943234564922132488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1213102339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50388 + ... + 70463.

It is an arithmetic number, because the mean of its divisors is an integer number (87013440).

Almost surely, 2^1213102338 is an apocalyptic number.

1213102338 is an abundant number, since it is smaller than the sum of its proper divisors (1571327742).

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

1213102338 is a wasteful number, since it uses less digits than its factorization.

1213102338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121102.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1213102338 is about 34829.6186886966. The cubic root of 1213102338 is about 1066.5121643191.

Adding to 1213102338 its reverse (8332013121), we get a palindrome (9545115459).

The spelling of 1213102338 in words is "one billion, two hundred thirteen million, one hundred two thousand, three hundred thirty-eight".