1020351312492 has 12 divisors (see below), whose sum is σ = 2380819729176. Its totient is φ = 340117104160.

The previous prime is 1020351312479. The next prime is 1020351312503. The reversal of 1020351312492 is 2942131530201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1020351312492² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42514638009 + ... + 42514638032.

It is an arithmetic number, because the mean of its divisors is an integer number (198401644098).

Almost surely, 2^{1020351312492} is an apocalyptic number.

1020351312492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020351312492 is an abundant number, since it is smaller than the sum of its proper divisors (1360468416684).

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

1020351312492 is a wasteful number, since it uses less digits than its factorization.

1020351312492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85029276048 (or 85029276046 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

Adding to 1020351312492 its reverse (2942131530201), we get a palindrome (3962482842693).

The spelling of 1020351312492 in words is "one trillion, twenty billion, three hundred fifty-one million, three hundred twelve thousand, four hundred ninety-two".