203122420203031 has 8 divisors (see below), whose sum is σ = 232202328814080. Its totient is φ = 174058116594648.

The previous prime is 203122420202993. The next prime is 203122420203097. The reversal of 203122420203031 is 130302024221302.

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 203122420203031 - 2³¹ = 203120272719383 is a prime.

It is a super-2 number, since 2×203122420203031² (a number of 29 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 = 203122420202987 and 203122420203005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203122420200031) 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, 3901222771 + ... + 3901274836.

It is an arithmetic number, because the mean of its divisors is an integer number (29025291101760).

Almost surely, 2^{203122420203031} is an apocalyptic number.

203122420203031 is a deficient number, since it is larger than the sum of its proper divisors (29079908611049).

203122420203031 is an equidigital number, since it uses as much as digits as its factorization.

203122420203031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7802501333.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 203122420203031 its reverse (130302024221302), we get a palindrome (333424444424333).

The spelling of 203122420203031 in words is "two hundred three trillion, one hundred twenty-two billion, four hundred twenty million, two hundred three thousand, thirty-one".