1051139629523 has 4 divisors (see below), whose sum is σ = 1051155945840. Its totient is φ = 1051123313208.

The previous prime is 1051139629513. The next prime is 1051139629571. The reversal of 1051139629523 is 3259269311501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1051139629523 - 2¹⁶ = 1051139563987 is a prime.

It is a super-2 number, since 2×1051139629523² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051139629513) 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, 8061140 + ... + 8190497.

It is an arithmetic number, because the mean of its divisors is an integer number (262788986460).

Almost surely, 2^{1051139629523} is an apocalyptic number.

1051139629523 is a deficient number, since it is larger than the sum of its proper divisors (16316317).

1051139629523 is an equidigital number, since it uses as much as digits as its factorization.

1051139629523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16316316.

The product of its (nonzero) digits is 437400, while the sum is 47.

The spelling of 1051139629523 in words is "one trillion, fifty-one billion, one hundred thirty-nine million, six hundred twenty-nine thousand, five hundred twenty-three".