1212231440031 has 16 divisors (see below), whose sum is σ = 1725980252160. Its totient is φ = 755116356960.

The previous prime is 1212231440029. The next prime is 1212231440033. The reversal of 1212231440031 is 1300441322121.

It is an interprime number because it is at equal distance from previous prime (1212231440029) and next prime (1212231440033).

It is not a de Polignac number, because 1212231440031 - 2¹ = 1212231440029 is a prime.

It is a super-2 number, since 2×1212231440031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212231439983 and 1212231440010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212231440033) 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, 224734315 + ... + 224739708.

It is an arithmetic number, because the mean of its divisors is an integer number (107873765760).

Almost surely, 2^{1212231440031} is an apocalyptic number.

1212231440031 is a deficient number, since it is larger than the sum of its proper divisors (513748812129).

1212231440031 is a wasteful number, since it uses less digits than its factorization.

1212231440031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449474086.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1212231440031 its reverse (1300441322121), we get a palindrome (2512672762152).

The spelling of 1212231440031 in words is "one trillion, two hundred twelve billion, two hundred thirty-one million, four hundred forty thousand, thirty-one".