121310101138 has 8 divisors (see below), whose sum is σ = 181984705920. Its totient is φ = 60648532500.

The previous prime is 121310101127. The next prime is 121310101153. The reversal of 121310101138 is 831101013121.

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

It is a super-2 number, since 2×121310101138² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3235738 + ... + 3273013.

It is an arithmetic number, because the mean of its divisors is an integer number (22748088240).

Almost surely, 2^121310101138 is an apocalyptic number.

121310101138 is a deficient number, since it is larger than the sum of its proper divisors (60674604782).

121310101138 is an equidigital number, since it uses as much as digits as its factorization.

121310101138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6518072.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 121310101138 its reverse (831101013121), we get a palindrome (952411114259).

The spelling of 121310101138 in words is "one hundred twenty-one billion, three hundred ten million, one hundred one thousand, one hundred thirty-eight".