100211311212031 has 4 divisors (see below), whose sum is σ = 100211380181752. Its totient is φ = 100211242242312.

The previous prime is 100211311212029. The next prime is 100211311212053. The reversal of 100211311212031 is 130212113112001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100211311212031 - 2¹ = 100211311212029 is a prime.

It is a super-2 number, since 2×100211311212031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100211311215031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32257440 + ... + 35227333.

It is an arithmetic number, because the mean of its divisors is an integer number (25052845045438).

Almost surely, 2^{100211311212031} is an apocalyptic number.

100211311212031 is a deficient number, since it is larger than the sum of its proper divisors (68969721).

100211311212031 is an equidigital number, since it uses as much as digits as its factorization.

100211311212031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68969720.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 100211311212031 its reverse (130212113112001), we get a palindrome (230423424324032).

The spelling of 100211311212031 in words is "one hundred trillion, two hundred eleven billion, three hundred eleven million, two hundred twelve thousand, thirty-one".