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121120002 = 23317131939
BaseRepresentation
bin1110011100000…
…10010100000010
322102220112102000
413032002110002
5222001320002
620004004430
73000334353
oct716022402
9272815360
10121120002
1162407283
1234690716
131c129953
141212bd2a
15a97761c
hex7382502

121120002 has 32 divisors (see below), whose sum is σ = 284990400. Its totient is φ = 37998144.

The previous prime is 121119983. The next prime is 121120009. The reversal of 121120002 is 200021121.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (121120009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65052 + ... + 66887.

It is an arithmetic number, because the mean of its divisors is an integer number (8905950).

Almost surely, 2121120002 is an apocalyptic number.

121120002 is an abundant number, since it is smaller than the sum of its proper divisors (163870398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121120002 is a wasteful number, since it uses less digits than its factorization.

121120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131967 (or 131961 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 121120002 is about 11005.4532846221. The cubic root of 121120002 is about 494.7722000490.

Adding to 121120002 its reverse (200021121), we get a palindrome (321141123).

The spelling of 121120002 in words is "one hundred twenty-one million, one hundred twenty thousand, two".