1023153563742 has 16 divisors (see below), whose sum is σ = 2135277002880. Its totient is φ = 326222875352.

The previous prime is 1023153563741. The next prime is 1023153563743. The reversal of 1023153563742 is 2473653513201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1023153563741) and next prime (1023153563743).

It is a junction number, because it is equal to n+sod(n) for n = 1023153563694 and 1023153563703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023153563741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3707077992 + ... + 3707078267.

It is an arithmetic number, because the mean of its divisors is an integer number (133454812680).

Almost surely, 2^{1023153563742} is an apocalyptic number.

1023153563742 is an abundant number, since it is smaller than the sum of its proper divisors (1112123439138).

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

1023153563742 is a wasteful number, since it uses less digits than its factorization.

1023153563742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7414156287.

The product of its (nonzero) digits is 453600, while the sum is 42.

The spelling of 1023153563742 in words is "one trillion, twenty-three billion, one hundred fifty-three million, five hundred sixty-three thousand, seven hundred forty-two".