101121031331 has 4 divisors (see below), whose sum is σ = 101127807072. Its totient is φ = 101114255592.

The previous prime is 101121031321. The next prime is 101121031381. The reversal of 101121031331 is 133130121101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133130121101 = 19 ⋅7006848479.

It is a cyclic number.

It is not a de Polignac number, because 101121031331 - 2¹⁴ = 101121014947 is a prime.

It is a super-2 number, since 2×101121031331² (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 (101121031321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3365435 + ... + 3395348.

It is an arithmetic number, because the mean of its divisors is an integer number (25281951768).

Almost surely, 2^101121031331 is an apocalyptic number.

101121031331 is a deficient number, since it is larger than the sum of its proper divisors (6775741).

101121031331 is an equidigital number, since it uses as much as digits as its factorization.

101121031331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6775740.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 101121031331 its reverse (133130121101), we get a palindrome (234251152432).

The spelling of 101121031331 in words is "one hundred one billion, one hundred twenty-one million, thirty-one thousand, three hundred thirty-one".