121310101139 has 8 divisors (see below), whose sum is σ = 125365174272. Its totient is φ = 117263893320.

The previous prime is 121310101127. The next prime is 121310101153. The reversal of 121310101139 is 931101013121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 121310101139 - 2¹² = 121310097043 is a prime.

It is a super-2 number, since 2×121310101139² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121310100139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2188499 + ... + 2243244.

It is an arithmetic number, because the mean of its divisors is an integer number (15670646784).

Almost surely, 2^121310101139 is an apocalyptic number.

121310101139 is a deficient number, since it is larger than the sum of its proper divisors (4055073133).

121310101139 is an equidigital number, since it uses as much as digits as its factorization.

121310101139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4432657.

The product of its (nonzero) digits is 162, while the sum is 23.

The spelling of 121310101139 in words is "one hundred twenty-one billion, three hundred ten million, one hundred one thousand, one hundred thirty-nine".