1023411656 has 8 divisors (see below), whose sum is σ = 1918896870. Its totient is φ = 511705824.

The previous prime is 1023411647. The next prime is 1023411659. The reversal of 1023411656 is 6561143201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 714706756 + 308704900 = 26734^2 + 17570^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1023411659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63963221 + ... + 63963236.

Almost surely, 2^1023411656 is an apocalyptic number.

It is an amenable number.

1023411656 is a deficient number, since it is larger than the sum of its proper divisors (895485214).

1023411656 is a wasteful number, since it uses less digits than its factorization.

1023411656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127926463 (or 127926459 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1023411656 is about 31990.8058041682. The cubic root of 1023411656 is about 1007.7437646551.

Adding to 1023411656 its reverse (6561143201), we get a palindrome (7584554857).

The spelling of 1023411656 in words is "one billion, twenty-three million, four hundred eleven thousand, six hundred fifty-six".