121012312310 has 16 divisors (see below), whose sum is σ = 217873599552. Its totient is φ = 48393494400.

The previous prime is 121012312283. The next prime is 121012312391. The reversal of 121012312310 is 13213210121.

It is a super-2 number, since 2×121012312310² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1384286 + ... + 1469105.

It is an arithmetic number, because the mean of its divisors is an integer number (13617099972).

Almost surely, 2^121012312310 is an apocalyptic number.

121012312310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121012312310 is a deficient number, since it is larger than the sum of its proper divisors (96861287242).

121012312310 is a wasteful number, since it uses less digits than its factorization.

121012312310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857639.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121012312310 its reverse (13213210121), we get a palindrome (134225522431).

The spelling of 121012312310 in words is "one hundred twenty-one billion, twelve million, three hundred twelve thousand, three hundred ten".