2131112202031 has 8 divisors (see below), whose sum is σ = 2183138977824. Its totient is φ = 2079087732480.

The previous prime is 2131112202029. The next prime is 2131112202059. The reversal of 2131112202031 is 1302022111312.

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 2131112202031 - 2¹ = 2131112202029 is a prime.

It is a super-2 number, since 2×2131112202031² (a number of 25 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 (2131112202431) 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, 1373670 + ... + 2479756.

It is an arithmetic number, because the mean of its divisors is an integer number (272892372228).

Almost surely, 2^{2131112202031} is an apocalyptic number.

2131112202031 is a deficient number, since it is larger than the sum of its proper divisors (52026775793).

2131112202031 is a wasteful number, since it uses less digits than its factorization.

2131112202031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153121.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2131112202031 its reverse (1302022111312), we get a palindrome (3433134313343).

It can be divided in two parts, 213111 and 2202031, that added together give a palindrome (2415142).

The spelling of 2131112202031 in words is "two trillion, one hundred thirty-one billion, one hundred twelve million, two hundred two thousand, thirty-one".