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31010250421101 = 3711313067952137
BaseRepresentation
bin1110000110100001000101…
…11101011111001101101101
311001210112212200002112021010
413003100202331133031231
513031032443101433401
6145541525023455433
76350262625314660
oct703204275371555
9131715780075233
1031010250421101
119976411a22046
123589bb2157579
13143c33c254503
14792c92d016d7
1538b9ab3b6ed6
hex1c3422f5f36d

31010250421101 has 16 divisors (see below), whose sum is σ = 47671889399424. Its totient is φ = 17563327670784.

The previous prime is 31010250421079. The next prime is 31010250421109. The reversal of 31010250421101 is 10112405201013.

It is not a de Polignac number, because 31010250421101 - 211 = 31010250419053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31010250421109) 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, 6533973696 + ... + 6533978441.

It is an arithmetic number, because the mean of its divisors is an integer number (2979493087464).

Almost surely, 231010250421101 is an apocalyptic number.

It is an amenable number.

31010250421101 is a deficient number, since it is larger than the sum of its proper divisors (16661638978323).

31010250421101 is a wasteful number, since it uses less digits than its factorization.

31010250421101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13067952260.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 31010250421101 its reverse (10112405201013), we get a palindrome (41122655622114).

The spelling of 31010250421101 in words is "thirty-one trillion, ten billion, two hundred fifty million, four hundred twenty-one thousand, one hundred one".

Divisors: 1 3 7 21 113 339 791 2373 13067952137 39203856411 91475664959 274426994877 1476678591481 4430035774443 10336750140367 31010250421101