1213023102031 has 16 divisors (see below), whose sum is σ = 1341975315744. Its totient is φ = 1089177888384.

The previous prime is 1213023102019. The next prime is 1213023102043. The reversal of 1213023102031 is 1302013203121.

It is an interprime number because it is at equal distance from previous prime (1213023102019) and next prime (1213023102043).

It is a cyclic number.

It is not a de Polignac number, because 1213023102031 - 2¹⁵ = 1213023069263 is a prime.

It is a super-2 number, since 2×1213023102031² (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 (1213023102001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1616040 + ... + 2244466.

It is an arithmetic number, because the mean of its divisors is an integer number (83873457234).

Almost surely, 2^{1213023102031} is an apocalyptic number.

1213023102031 is a deficient number, since it is larger than the sum of its proper divisors (128952213713).

1213023102031 is a wasteful number, since it uses less digits than its factorization.

1213023102031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632490.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1213023102031 its reverse (1302013203121), we get a palindrome (2515036305152).

The spelling of 1213023102031 in words is "one trillion, two hundred thirteen billion, twenty-three million, one hundred two thousand, thirty-one".