1213131203102 has 64 divisors (see below), whose sum is σ = 2376774005760. Its totient is φ = 450660036096.

The previous prime is 1213131203093. The next prime is 1213131203111. The reversal of 1213131203102 is 2013021313121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1213131203093) and next prime (1213131203111).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 911693 + ... + 1804839.

It is an arithmetic number, because the mean of its divisors is an integer number (37137093840).

Almost surely, 2^{1213131203102} is an apocalyptic number.

1213131203102 is a deficient number, since it is larger than the sum of its proper divisors (1163642802658).

1213131203102 is a wasteful number, since it uses less digits than its factorization.

1213131203102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893625.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1213131203102 its reverse (2013021313121), we get a palindrome (3226152516223).

The spelling of 1213131203102 in words is "one trillion, two hundred thirteen billion, one hundred thirty-one million, two hundred three thousand, one hundred two".