123311331010 has 32 divisors (see below), whose sum is σ = 257241837312. Its totient is φ = 41682701760.

The previous prime is 123311330971. The next prime is 123311331029. The reversal of 123311331010 is 10133113321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12400597 + ... + 12410536.

It is an arithmetic number, because the mean of its divisors is an integer number (8038807416).

Almost surely, 2^123311331010 is an apocalyptic number.

123311331010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123311331010 is an abundant number, since it is smaller than the sum of its proper divisors (133930506302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123311331010 is a wasteful number, since it uses less digits than its factorization.

123311331010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24811218.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 123311331010 its reverse (10133113321), we get a palindrome (133444444331).

The spelling of 123311331010 in words is "one hundred twenty-three billion, three hundred eleven million, three hundred thirty-one thousand, ten".