123451311010 has 8 divisors (see below), whose sum is σ = 222212359836. Its totient is φ = 49380524400.

The previous prime is 123451310987. The next prime is 123451311023. The reversal of 123451311010 is 10113154321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 119870365729 + 3580945281 = 346223^2 + 59841^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6172565541 + ... + 6172565560.

Almost surely, 2^123451311010 is an apocalyptic number.

123451311010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123451311010 is a deficient number, since it is larger than the sum of its proper divisors (98761048826).

123451311010 is a wasteful number, since it uses less digits than its factorization.

123451311010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12345131108.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 123451311010 its reverse (10113154321), we get a palindrome (133564465331).

The spelling of 123451311010 in words is "one hundred twenty-three billion, four hundred fifty-one million, three hundred eleven thousand, ten".