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31113223123130 = 255797753664769
BaseRepresentation
bin1110001001100000111001…
…00111001011000010111010
311002011101200000101210001222
413010300130213023002322
513034224340104420010
6150101114542112042
76360566446663151
oct704603447130272
9132141600353058
1031113223123130
119a06053373185
1235a5b4b57b622
131448c6c8ab325
14797c60aa0598
1538e4d65a2355
hex1c4c1c9cb0ba

31113223123130 has 16 divisors (see below), whose sum is σ = 56004768631080. Its totient is φ = 12445074358272.

The previous prime is 31113223123117. The next prime is 31113223123153. The reversal of 31113223123130 is 3132132231113.

It can be written as a sum of positive squares in 4 ways, for example, as 29630178976321 + 1483044146809 = 5443361^2 + 1217803^2 .

It is a super-2 number, since 2×311132231231302 (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31113223123130.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26252615 + ... + 27412154.

Almost surely, 231113223123130 is an apocalyptic number.

31113223123130 is a deficient number, since it is larger than the sum of its proper divisors (24891545507950).

31113223123130 is a wasteful number, since it uses less digits than its factorization.

31113223123130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53722753.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 31113223123130 its reverse (3132132231113), we get a palindrome (34245355354243).

The spelling of 31113223123130 in words is "thirty-one trillion, one hundred thirteen billion, two hundred twenty-three million, one hundred twenty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 57977 115954 289885 579770 53664769 107329538 268323845 536647690 3111322312313 6222644624626 15556611561565 31113223123130