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120131212220203 = 128519934735037
BaseRepresentation
bin11011010100001000111010…
…001110110001011100101011
3120202100102122201201110001211
4123110020322032301130223
5111221212210312021303
61103255303402053551
734206123266514202
oct3324107216613453
9522312581643054
10120131212220203
11353063a7536318
1211582297aaa2b7
13520542b4b3c62
14219454b52a239
15dd4d4db1a66d
hex6d423a3b172b

120131212220203 has 4 divisors (see below), whose sum is σ = 120132147083760. Its totient is φ = 120130277356648.

The previous prime is 120131212220197. The next prime is 120131212220221. The reversal of 120131212220203 is 302022212131021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120131212220203 is a prime.

It is a super-2 number, since 2×1201312122202032 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120131612220203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467239000 + ... + 467496037.

It is an arithmetic number, because the mean of its divisors is an integer number (30033036770940).

Almost surely, 2120131212220203 is an apocalyptic number.

120131212220203 is a deficient number, since it is larger than the sum of its proper divisors (934863557).

120131212220203 is an equidigital number, since it uses as much as digits as its factorization.

120131212220203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934863556.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 120131212220203 its reverse (302022212131021), we get a palindrome (422153424351224).

The spelling of 120131212220203 in words is "one hundred twenty trillion, one hundred thirty-one billion, two hundred twelve million, two hundred twenty thousand, two hundred three".

Divisors: 1 128519 934735037 120131212220203