13123445462650 has 12 divisors (see below), whose sum is σ = 24409608560622. Its totient is φ = 5249378185040.

The previous prime is 13123445462597. The next prime is 13123445462653. The reversal of 13123445462650 is 5626454432131.

It can be written as a sum of positive squares in 3 ways, for example, as 11997238472209 + 1126206990441 = 3463703^2 + 1061229^2 .

It is a super-2 number, since 2×13123445462650² (a number of 27 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 13123445462650.

It is not an unprimeable number, because it can be changed into a prime (13123445462653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131234454577 + ... + 131234454676.

Almost surely, 2^{13123445462650} is an apocalyptic number.

13123445462650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13123445462650 is a deficient number, since it is larger than the sum of its proper divisors (11286163097972).

13123445462650 is a wasteful number, since it uses less digits than its factorization.

13123445462650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262468909265 (or 262468909260 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 46.

Adding to 13123445462650 its reverse (5626454432131), we get a palindrome (18749899894781).

The spelling of 13123445462650 in words is "thirteen trillion, one hundred twenty-three billion, four hundred forty-five million, four hundred sixty-two thousand, six hundred fifty".