Search a number
-
+
121210230124 = 22191594871449
BaseRepresentation
bin111000011100010110…
…0010101010101101100
3102120212100102200010101
41300320230111111230
53441214304330444
6131403323520444
711520462646054
oct1607054252554
9376770380111
10121210230124
1147450018a05
121b5a9089124
13b578b51079
145c1bd7a564
1532463623d4
hex1c38b1556c

121210230124 has 12 divisors (see below), whose sum is σ = 223282003000. Its totient is φ = 57415372128.

The previous prime is 121210230107. The next prime is 121210230131. The reversal of 121210230124 is 421032012121.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 797435649 + ... + 797435800.

Almost surely, 2121210230124 is an apocalyptic number.

It is an amenable number.

121210230124 is a deficient number, since it is larger than the sum of its proper divisors (102071772876).

121210230124 is a wasteful number, since it uses less digits than its factorization.

121210230124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594871472 (or 1594871470 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121210230124 its reverse (421032012121), we get a palindrome (542242242245).

The spelling of 121210230124 in words is "one hundred twenty-one billion, two hundred ten million, two hundred thirty thousand, one hundred twenty-four".

Divisors: 1 2 4 19 38 76 1594871449 3189742898 6379485796 30302557531 60605115062 121210230124