121031231121310 has 16 divisors (see below), whose sum is σ = 223744221857376. Its totient is φ = 47104046706528.

The previous prime is 121031231121223. The next prime is 121031231121379. The reversal of 121031231121310 is 13121132130121.

It is a super-2 number, since 2×121031231121310² (a number of 29 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, 163555717362 + ... + 163555718101.

It is an arithmetic number, because the mean of its divisors is an integer number (13984013866086).

Almost surely, 2^{121031231121310} is an apocalyptic number.

121031231121310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121031231121310 is a deficient number, since it is larger than the sum of its proper divisors (102712990736066).

121031231121310 is a wasteful number, since it uses less digits than its factorization.

121031231121310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327111435507.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 121031231121310 its reverse (13121132130121), we get a palindrome (134152363251431).

The spelling of 121031231121310 in words is "one hundred twenty-one trillion, thirty-one billion, two hundred thirty-one million, one hundred twenty-one thousand, three hundred ten".