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121136780837 = 1361459119387
BaseRepresentation
bin111000011010001010…
…0001001011000100101
3102120200020020001122102
41300310110021120211
53441042003441322
6131352141341445
711515611435152
oct1606424113045
9376606201572
10121136780837
1147412611416
121b588567885
13b566875557
145c122db229
15323eba4792
hex1c34509625

121136780837 has 8 divisors (see below), whose sum is σ = 121258445952. Its totient is φ = 121015166400.

The previous prime is 121136780833. The next prime is 121136780839. The reversal of 121136780837 is 738087631121.

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 121136780837 - 22 = 121136780833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121136780791 and 121136780800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121136780833) 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, 6238658 + ... + 6258044.

It is an arithmetic number, because the mean of its divisors is an integer number (15157305744).

Almost surely, 2121136780837 is an apocalyptic number.

It is an amenable number.

121136780837 is a deficient number, since it is larger than the sum of its proper divisors (121665115).

121136780837 is a wasteful number, since it uses less digits than its factorization.

121136780837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25339.

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 121136780837 in words is "one hundred twenty-one billion, one hundred thirty-six million, seven hundred eighty thousand, eight hundred thirty-seven".

Divisors: 1 1361 4591 19387 6248351 26385707 89005717 121136780837