1021030101231 has 32 divisors (see below), whose sum is σ = 1625635243008. Its totient is φ = 557345015040.

The previous prime is 1021030101193. The next prime is 1021030101263. The reversal of 1021030101231 is 1321010301201.

It is a happy number.

It is not a de Polignac number, because 1021030101231 - 2¹¹ = 1021030099183 is a prime.

It is a super-2 number, since 2×1021030101231² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1021030101231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021030101031) 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, 1021356 + ... + 1756481.

It is an arithmetic number, because the mean of its divisors is an integer number (50801101344).

Almost surely, 2^{1021030101231} is an apocalyptic number.

1021030101231 is a deficient number, since it is larger than the sum of its proper divisors (604605141777).

1021030101231 is a wasteful number, since it uses less digits than its factorization.

1021030101231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778631.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1021030101231 its reverse (1321010301201), we get a palindrome (2342040402432).

The spelling of 1021030101231 in words is "one trillion, twenty-one billion, thirty million, one hundred one thousand, two hundred thirty-one".