1213652312101 has 8 divisors (see below), whose sum is σ = 1277886572000. Its totient is φ = 1149453834480.

The previous prime is 1213652312087. The next prime is 1213652312153. The reversal of 1213652312101 is 1012132563121.

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 1213652312101 - 2⁵ = 1213652312069 is a prime.

It is a super-2 number, since 2×1213652312101² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1213652312101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213652312161) 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, 8875926 + ... + 9011623.

It is an arithmetic number, because the mean of its divisors is an integer number (159735821500).

Almost surely, 2^{1213652312101} is an apocalyptic number.

It is an amenable number.

1213652312101 is a deficient number, since it is larger than the sum of its proper divisors (64234259899).

1213652312101 is a wasteful number, since it uses less digits than its factorization.

1213652312101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17891139.

The product of its (nonzero) digits is 2160, while the sum is 28.

Adding to 1213652312101 its reverse (1012132563121), we get a palindrome (2225784875222).

The spelling of 1213652312101 in words is "one trillion, two hundred thirteen billion, six hundred fifty-two million, three hundred twelve thousand, one hundred one".