131030223031 has 4 divisors (see below), whose sum is σ = 131426085064. Its totient is φ = 130634361000.

The previous prime is 131030222993. The next prime is 131030223053. The reversal of 131030223031 is 130322030131.

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 131030223031 - 2¹³ = 131030214839 is a prime.

It is a super-2 number, since 2×131030223031² (a number of 23 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 (131030223931) 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, 197930520 + ... + 197931181.

It is an arithmetic number, because the mean of its divisors is an integer number (32856521266).

Almost surely, 2^131030223031 is an apocalyptic number.

131030223031 is a deficient number, since it is larger than the sum of its proper divisors (395862033).

131030223031 is an equidigital number, since it uses as much as digits as its factorization.

131030223031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395862032.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 131030223031 its reverse (130322030131), we get a palindrome (261352253162).

It can be divided in two parts, 131030 and 223031, that added together give a triangular number (354061 = T₈₄₁).

The spelling of 131030223031 in words is "one hundred thirty-one billion, thirty million, two hundred twenty-three thousand, thirty-one".