Search a number
-
+
1231230111010 = 25196480158479
BaseRepresentation
bin10001111010101011000…
…010001000110100100010
311100201000112200010102121
4101322223002020310202
5130133024402023020
62341341434134454
7154645013160244
oct21725302106442
94321015603377
101231230111010
11435186332799
1217a75458142a
138c148787933
14438400a0094
15220617ebbaa
hex11eab088d22

1231230111010 has 16 divisors (see below), whose sum is σ = 2332857052800. Its totient is φ = 466571410416.

The previous prime is 1231230110989. The next prime is 1231230111017. The reversal of 1231230111010 is 101110321321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1231230111017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3240079050 + ... + 3240079429.

It is an arithmetic number, because the mean of its divisors is an integer number (145803565800).

Almost surely, 21231230111010 is an apocalyptic number.

1231230111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231230111010 is a deficient number, since it is larger than the sum of its proper divisors (1101626941790).

1231230111010 is a wasteful number, since it uses less digits than its factorization.

1231230111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6480158505.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1231230111010 its reverse (101110321321), we get a palindrome (1332340432331).

The spelling of 1231230111010 in words is "one trillion, two hundred thirty-one billion, two hundred thirty million, one hundred eleven thousand, ten".

Divisors: 1 2 5 10 19 38 95 190 6480158479 12960316958 32400792395 64801584790 123123011101 246246022202 615615055505 1231230111010