121231323010 has 64 divisors (see below), whose sum is σ = 251097260544. Its totient is φ = 41281228800.

The previous prime is 121231322987. The next prime is 121231323023. The reversal of 121231323010 is 10323132121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8517700 + ... + 8531920.

It is an arithmetic number, because the mean of its divisors is an integer number (3923394696).

Almost surely, 2^121231323010 is an apocalyptic number.

121231323010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121231323010 is an abundant number, since it is smaller than the sum of its proper divisors (129865937534).

121231323010 is a wasteful number, since it uses less digits than its factorization.

121231323010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15059.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 121231323010 its reverse (10323132121), we get a palindrome (131554455131).

The spelling of 121231323010 in words is "one hundred twenty-one billion, two hundred thirty-one million, three hundred twenty-three thousand, ten".