1023155512154 has 8 divisors (see below), whose sum is σ = 1625011695828. Its totient is φ = 481484946880.

The previous prime is 1023155512133. The next prime is 1023155512157. The reversal of 1023155512154 is 4512155513201.

1023155512154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 966931988929 + 56223523225 = 983327^2 + 237115^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1023155512154² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1023155512157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15046404557 + ... + 15046404624.

Almost surely, 2^{1023155512154} is an apocalyptic number.

1023155512154 is a deficient number, since it is larger than the sum of its proper divisors (601856183674).

1023155512154 is a wasteful number, since it uses less digits than its factorization.

1023155512154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30092809200.

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 1023155512154 in words is "one trillion, twenty-three billion, one hundred fifty-five million, five hundred twelve thousand, one hundred fifty-four".