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20000012030131 = 722578811802707
BaseRepresentation
bin1001000110000100111011…
…00111001101000010110011
32121210222112020002200220011
410203002131213031002303
510110140011034431011
6110311513443555351
74132644641205100
oct443023547150263
977728466080804
1020000012030131
116410a594344a1
1222b017768bb57
13b20cba936663
144d2011aadaa7
1524a3a5e60621
hex12309d9cd0b3

20000012030131 has 24 divisors (see below), whose sum is σ = 23382370233936. Its totient is φ = 17056771522560.

The previous prime is 20000012030111. The next prime is 20000012030179. The reversal of 20000012030131 is 13103021000002.

It is not a de Polignac number, because 20000012030131 - 25 = 20000012030099 is a prime.

It is a super-2 number, since 2×200000120301312 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20000012030101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10193080 + ... + 11995786.

It is an arithmetic number, because the mean of its divisors is an integer number (974265426414).

Almost surely, 220000012030131 is an apocalyptic number.

20000012030131 is a deficient number, since it is larger than the sum of its proper divisors (3382358203805).

20000012030131 is a wasteful number, since it uses less digits than its factorization.

20000012030131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803859 (or 1803852 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20000012030131 its reverse (13103021000002), we get a palindrome (33103033030133).

The spelling of 20000012030131 in words is "twenty trillion, twelve million, thirty thousand, one hundred thirty-one".

Divisors: 1 7 49 257 881 1799 6167 12593 43169 226417 1584919 1802707 11094433 12618949 88332643 463295699 1588184867 3243069893 11117294069 22701489251 77821058483 408163510819 2857144575733 20000012030131