1023156315470 has 32 divisors (see below), whose sum is σ = 1849165309728. Its totient is φ = 407600765568.

The previous prime is 1023156315469. The next prime is 1023156315479. The reversal of 1023156315470 is 745136513201.

It is a happy number.

It is a super-2 number, since 2×1023156315470² (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 (1023156315479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6130772 + ... + 6295448.

It is an arithmetic number, because the mean of its divisors is an integer number (57786415929).

Almost surely, 2^{1023156315470} is an apocalyptic number.

1023156315470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1023156315470 is a deficient number, since it is larger than the sum of its proper divisors (826008994258).

1023156315470 is a wasteful number, since it uses less digits than its factorization.

1023156315470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167204.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 1023156315470 in words is "one trillion, twenty-three billion, one hundred fifty-six million, three hundred fifteen thousand, four hundred seventy".