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2130123003031 = 2769176924741
BaseRepresentation
bin11110111111110101001…
…110011001010010010111
321112122012221020022000201
4132333311032121102113
5234344442442044111
64310322012321331
7306616301531602
oct36776516312227
97478187208021
102130123003031
1175141a9a2a11
122a49b9a73247
13125b3ca7495a
1475154417339
153a621a3b6c1
hex1eff5399497

2130123003031 has 4 divisors (see below), whose sum is σ = 2130199955464. Its totient is φ = 2130046050600.

The previous prime is 2130123002983. The next prime is 2130123003083. The reversal of 2130123003031 is 1303003210312.

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

It is a cyclic number.

It is not a de Polignac number, because 2130123003031 - 29 = 2130123002519 is a prime.

It is a super-2 number, since 2×21301230030312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130123003131) 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, 38434680 + ... + 38490061.

It is an arithmetic number, because the mean of its divisors is an integer number (532549988866).

Almost surely, 22130123003031 is an apocalyptic number.

2130123003031 is a deficient number, since it is larger than the sum of its proper divisors (76952433).

2130123003031 is an equidigital number, since it uses as much as digits as its factorization.

2130123003031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76952432.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 2130123003031 its reverse (1303003210312), we get a palindrome (3433126213343).

The spelling of 2130123003031 in words is "two trillion, one hundred thirty billion, one hundred twenty-three million, three thousand, thirty-one".

Divisors: 1 27691 76924741 2130123003031