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3123211313130 = 235151689450621
BaseRepresentation
bin101101011100101101111…
…001101001111111101010
3102001120112222002111101220
4231130231321221333222
5402132314044010010
610350441121322510
7441434042065326
oct55345571517752
912046488074356
103123211313130
11aa4601400997
12425371196436
1319869611724c
14ab242930986
15563965ce970
hex2d72de69fea

3123211313130 has 32 divisors (see below), whose sum is σ = 7545347607168. Its totient is φ = 827340744000.

The previous prime is 3123211313087. The next prime is 3123211313137. The reversal of 3123211313130 is 313131123213.

It is a self number, because there is not a number n which added to its sum of digits gives 3123211313130.

It is not an unprimeable number, because it can be changed into a prime (3123211313137) 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, 344720781 + ... + 344729840.

It is an arithmetic number, because the mean of its divisors is an integer number (235792112724).

Almost surely, 23123211313130 is an apocalyptic number.

3123211313130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3123211313130 is an abundant number, since it is smaller than the sum of its proper divisors (4422136294038).

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

3123211313130 is a wasteful number, since it uses less digits than its factorization.

3123211313130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689450782.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 3123211313130 its reverse (313131123213), we get a palindrome (3436342436343).

The spelling of 3123211313130 in words is "three trillion, one hundred twenty-three billion, two hundred eleven million, three hundred thirteen thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 151 302 453 755 906 1510 2265 4530 689450621 1378901242 2068351863 3447253105 4136703726 6894506210 10341759315 20683518630 104107043771 208214087542 312321131313 520535218855 624642262626 1041070437710 1561605656565 3123211313130