220231103021031 has 16 divisors (see below), whose sum is σ = 311007894386400. Its totient is φ = 138142712168448.

The previous prime is 220231103021003. The next prime is 220231103021081. The reversal of 220231103021031 is 130120301132022.

It is not a de Polignac number, because 220231103021031 - 2⁹ = 220231103020519 is a prime.

It is a super-2 number, since 2×220231103021031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220231103020989 and 220231103021007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220231103021081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648411916 + ... + 648751473.

It is an arithmetic number, because the mean of its divisors is an integer number (19437993399150).

Almost surely, 2^{220231103021031} is an apocalyptic number.

220231103021031 is a deficient number, since it is larger than the sum of its proper divisors (90776791365369).

220231103021031 is a wasteful number, since it uses less digits than its factorization.

220231103021031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297166738.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 220231103021031 its reverse (130120301132022), we get a palindrome (350351404153053).

The spelling of 220231103021031 in words is "two hundred twenty trillion, two hundred thirty-one billion, one hundred three million, twenty-one thousand, thirty-one".