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121113433 = 7711971237
BaseRepresentation
bin1110011100000…
…00101101011001
322102220012101201
413032000231121
5222001112213
620003514201
73000306250
oct716005531
9272805351
10121113433
1162402351
1234688961
131c12696c
1412129797
15a9756dd
hex7380b59

121113433 has 16 divisors (see below), whose sum is σ = 141191424. Its totient is φ = 101747520.

The previous prime is 121113431. The next prime is 121113437. The reversal of 121113433 is 334311121.

It is not a de Polignac number, because 121113433 - 21 = 121113431 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 121113433.

It is not an unprimeable number, because it can be changed into a prime (121113431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97291 + ... + 98527.

It is an arithmetic number, because the mean of its divisors is an integer number (8824464).

Almost surely, 2121113433 is an apocalyptic number.

It is an amenable number.

121113433 is a deficient number, since it is larger than the sum of its proper divisors (20077991).

121113433 is a wasteful number, since it uses less digits than its factorization.

121113433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512.

The product of its digits is 216, while the sum is 19.

The square root of 121113433 is about 11005.1548376204. The cubic root of 121113433 is about 494.7632551533.

Adding to 121113433 its reverse (334311121), we get a palindrome (455424554).

The spelling of 121113433 in words is "one hundred twenty-one million, one hundred thirteen thousand, four hundred thirty-three".

Divisors: 1 7 71 197 497 1237 1379 8659 13987 87827 97909 243689 614789 1705823 17301919 121113433