1020012133231 has 32 divisors (see below), whose sum is σ = 1296045363200. Its totient is φ = 780919107840.

The previous prime is 1020012133229. The next prime is 1020012133253. The reversal of 1020012133231 is 1323312100201.

It is a cyclic number.

It is not a de Polignac number, because 1020012133231 - 2¹ = 1020012133229 is a prime.

It is a super-3 number, since 3×1020012133231³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1020012133199 and 1020012133208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020012133531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34906555 + ... + 34935763.

It is an arithmetic number, because the mean of its divisors is an integer number (40501417600).

Almost surely, 2^{1020012133231} is an apocalyptic number.

1020012133231 is a deficient number, since it is larger than the sum of its proper divisors (276033229969).

1020012133231 is a wasteful number, since it uses less digits than its factorization.

1020012133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41639.

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

Adding to 1020012133231 its reverse (1323312100201), we get a palindrome (2343324233432).

The spelling of 1020012133231 in words is "one trillion, twenty billion, twelve million, one hundred thirty-three thousand, two hundred thirty-one".