1030121202312 has 96 divisors (see below), whose sum is σ = 2875513544280. Its totient is φ = 332904176640.

The previous prime is 1030121202289. The next prime is 1030121202329. The reversal of 1030121202312 is 2132021210301.

1030121202312 is a `hidden beast` number, since 1 + 0 + 30 + 121 + 202 + 312 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 941416110756 + 88705091556 = 970266^2 + 297834^2 .

It is a super-2 number, since 2×1030121202312² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60538 + ... + 1436630.

Almost surely, 2^{1030121202312} is an apocalyptic number.

1030121202312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1030121202312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1437756772140).

1030121202312 is an abundant number, since it is smaller than the sum of its proper divisors (1845392341968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1030121202312 is a wasteful number, since it uses less digits than its factorization.

1030121202312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376423 (or 1376416 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1030121202312 its reverse (2132021210301), we get a palindrome (3162142412613).

The spelling of 1030121202312 in words is "one trillion, thirty billion, one hundred twenty-one million, two hundred two thousand, three hundred twelve".