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1212131002101 = 31723767274551
BaseRepresentation
bin10001101000111000101…
…000110100011011110101
311021212201111022212102120
4101220320220310123311
5124324421014031401
62324502330030153
7153400510343055
oct21507050643365
94255644285376
101212131002101
11428075394568
12176b04278359
138a3c3929166
144294b6c7565
15217e4bd6836
hex11a38a346f5

1212131002101 has 8 divisors (see below), whose sum is σ = 1711243767744. Its totient is φ = 760552785600.

The previous prime is 1212131002079. The next prime is 1212131002111. The reversal of 1212131002101 is 1012001312121.

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

It is not a de Polignac number, because 1212131002101 - 27 = 1212131001973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212131002111) 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, 11883637225 + ... + 11883637326.

It is an arithmetic number, because the mean of its divisors is an integer number (213905470968).

Almost surely, 21212131002101 is an apocalyptic number.

It is an amenable number.

1212131002101 is a deficient number, since it is larger than the sum of its proper divisors (499112765643).

1212131002101 is a wasteful number, since it uses less digits than its factorization.

1212131002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23767274571.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1212131002101 its reverse (1012001312121), we get a palindrome (2224132314222).

The spelling of 1212131002101 in words is "one trillion, two hundred twelve billion, one hundred thirty-one million, two thousand, one hundred one".

Divisors: 1 3 17 51 23767274551 71301823653 404043667367 1212131002101