1213103031101 has 8 divisors (see below), whose sum is σ = 1306736492544. Its totient is φ = 1119514975920.

The previous prime is 1213103031073. The next prime is 1213103031113. The reversal of 1213103031101 is 1011303013121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1213103031101 - 2³⁸ = 938225124157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1213103031101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213103031131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11296061 + ... + 11402946.

It is an arithmetic number, because the mean of its divisors is an integer number (163342061568).

Almost surely, 2^{1213103031101} is an apocalyptic number.

It is an amenable number.

1213103031101 is a deficient number, since it is larger than the sum of its proper divisors (93633461443).

1213103031101 is a wasteful number, since it uses less digits than its factorization.

1213103031101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22703131.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1213103031101 its reverse (1011303013121), we get a palindrome (2224406044222).

The spelling of 1213103031101 in words is "one trillion, two hundred thirteen billion, one hundred three million, thirty-one thousand, one hundred one".