1071230478621 has 32 divisors (see below), whose sum is σ = 1505998061568. Its totient is φ = 676301104320.

The previous prime is 1071230478611. The next prime is 1071230478641. The reversal of 1071230478621 is 1268740321701.

It is not a de Polignac number, because 1071230478621 - 2¹¹ = 1071230476573 is a prime.

It is a super-2 number, since 2×1071230478621² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071230478601) 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, 32840506 + ... + 32873108.

It is an arithmetic number, because the mean of its divisors is an integer number (47062439424).

Almost surely, 2^{1071230478621} is an apocalyptic number.

It is an amenable number.

1071230478621 is a deficient number, since it is larger than the sum of its proper divisors (434767582947).

1071230478621 is a wasteful number, since it uses less digits than its factorization.

1071230478621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40201.

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 1071230478621 in words is "one trillion, seventy-one billion, two hundred thirty million, four hundred seventy-eight thousand, six hundred twenty-one".