101030221031 has 4 divisors (see below), whose sum is σ = 101475288312. Its totient is φ = 100585153752.

The previous prime is 101030220979. The next prime is 101030221093. The reversal of 101030221031 is 130122030101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130122030101 = 7 ⋅18588861443.

It is a cyclic number.

It is not a de Polignac number, because 101030221031 - 2¹⁰ = 101030220007 is a prime.

It is a super-2 number, since 2×101030221031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101030220997 and 101030221015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101030223031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222533300 + ... + 222533753.

It is an arithmetic number, because the mean of its divisors is an integer number (25368822078).

Almost surely, 2^101030221031 is an apocalyptic number.

101030221031 is a deficient number, since it is larger than the sum of its proper divisors (445067281).

101030221031 is an equidigital number, since it uses as much as digits as its factorization.

101030221031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445067280.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 101030221031 its reverse (130122030101), we get a palindrome (231152251132).

The spelling of 101030221031 in words is "one hundred one billion, thirty million, two hundred twenty-one thousand, thirty-one".